Home / 10,892.19-15,032.75-6,642.80

Finding the Fourth Proportional to 10,892.19, 15,032.75 and 6,642.80

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Solution

The fourth proportional to 10,892.19, 15,032.75 and 6,642.80 is: 9,167.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,892.19 : 15,032.75 = 6,642.80 : x
  2. Step 2: Convert to fraction form
    10,892.19/15,032.75 = 6,642.80/x
  3. Step 3: Cross multiply
    10,892.19x = 15,032.75 × 6,642.80
  4. Step 4: Simplify right side
    10,892.19x = 99,859,443.32
  5. Step 5: Solve for x
    x = 99,859,443.32/10,892.19
  6. Step 6: Final answer
    x = 9,167.99

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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.