Home / 10,316.80-15,480.32-6,853.12

Finding the Fourth Proportional to 10,316.80, 15,480.32 and 6,853.12

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Solution

The fourth proportional to 10,316.80, 15,480.32 and 6,853.12 is: 10,283.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,316.80 : 15,480.32 = 6,853.12 : x
  2. Step 2: Convert to fraction form
    10,316.80/15,480.32 = 6,853.12/x
  3. Step 3: Cross multiply
    10,316.80x = 15,480.32 × 6,853.12
  4. Step 4: Simplify right side
    10,316.80x = 106,088,490.60
  5. Step 5: Solve for x
    x = 106,088,490.60/10,316.80
  6. Step 6: Final answer
    x = 10,283.08

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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.