Home / 9,381.30-14,088.15-9,089.70

Finding the Fourth Proportional to 9,381.30, 14,088.15 and 9,089.70

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Solution

The fourth proportional to 9,381.30, 14,088.15 and 9,089.70 is: 13,650.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,381.30 : 14,088.15 = 9,089.70 : x
  2. Step 2: Convert to fraction form
    9,381.30/14,088.15 = 9,089.70/x
  3. Step 3: Cross multiply
    9,381.30x = 14,088.15 × 9,089.70
  4. Step 4: Simplify right side
    9,381.30x = 128,057,057.06
  5. Step 5: Solve for x
    x = 128,057,057.06/9,381.30
  6. Step 6: Final answer
    x = 13,650.25

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Half scale
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Double scale
Find fourth proportional to 9,382.30, 14,089.65 and 9,090.70
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.