Home / 13,359.06-18,432.09-7,695.36

Finding the Fourth Proportional to 13,359.06, 18,432.09 and 7,695.36

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Solution

The fourth proportional to 13,359.06, 18,432.09 and 7,695.36 is: 10,617.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,359.06 : 18,432.09 = 7,695.36 : x
  2. Step 2: Convert to fraction form
    13,359.06/18,432.09 = 7,695.36/x
  3. Step 3: Cross multiply
    13,359.06x = 18,432.09 × 7,695.36
  4. Step 4: Simplify right side
    13,359.06x = 141,841,568.10
  5. Step 5: Solve for x
    x = 141,841,568.10/13,359.06
  6. Step 6: Final answer
    x = 10,617.63

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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.