Home / 13,432.16-18,535.30-7,767.28

Finding the Fourth Proportional to 13,432.16, 18,535.30 and 7,767.28

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Solution

The fourth proportional to 13,432.16, 18,535.30 and 7,767.28 is: 10,718.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,432.16 : 18,535.30 = 7,767.28 : x
  2. Step 2: Convert to fraction form
    13,432.16/18,535.30 = 7,767.28/x
  3. Step 3: Cross multiply
    13,432.16x = 18,535.30 × 7,767.28
  4. Step 4: Simplify right side
    13,432.16x = 143,968,733.47
  5. Step 5: Solve for x
    x = 143,968,733.47/13,432.16
  6. Step 6: Final answer
    x = 10,718.21

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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.