Home / 14,070.38-19,417.12-7,782.75

Finding the Fourth Proportional to 14,070.38, 19,417.12 and 7,782.75

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Solution

The fourth proportional to 14,070.38, 19,417.12 and 7,782.75 is: 10,740.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,070.38 : 19,417.12 = 7,782.75 : x
  2. Step 2: Convert to fraction form
    14,070.38/19,417.12 = 7,782.75/x
  3. Step 3: Cross multiply
    14,070.38x = 19,417.12 × 7,782.75
  4. Step 4: Simplify right side
    14,070.38x = 151,118,571.22
  5. Step 5: Solve for x
    x = 151,118,571.22/14,070.38
  6. Step 6: Final answer
    x = 10,740.20

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.