Home / 16,779.28-23,156.40-9,708.16

Finding the Fourth Proportional to 16,779.28, 23,156.40 and 9,708.16

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Solution

The fourth proportional to 16,779.28, 23,156.40 and 9,708.16 is: 13,397.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,779.28 : 23,156.40 = 9,708.16 : x
  2. Step 2: Convert to fraction form
    16,779.28/23,156.40 = 9,708.16/x
  3. Step 3: Cross multiply
    16,779.28x = 23,156.40 × 9,708.16
  4. Step 4: Simplify right side
    16,779.28x = 224,806,036.22
  5. Step 5: Solve for x
    x = 224,806,036.22/16,779.28
  6. Step 6: Final answer
    x = 13,397.84

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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.