Home / 15,779.38-21,772.52-9,492.16

Finding the Fourth Proportional to 15,779.38, 21,772.52 and 9,492.16

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Solution

The fourth proportional to 15,779.38, 21,772.52 and 9,492.16 is: 13,097.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,779.38 : 21,772.52 = 9,492.16 : x
  2. Step 2: Convert to fraction form
    15,779.38/21,772.52 = 9,492.16/x
  3. Step 3: Cross multiply
    15,779.38x = 21,772.52 × 9,492.16
  4. Step 4: Simplify right side
    15,779.38x = 206,668,243.44
  5. Step 5: Solve for x
    x = 206,668,243.44/15,779.38
  6. Step 6: Final answer
    x = 13,097.36

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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.