Home / 15,718.20-23,538.42-9,124.40

Finding the Fourth Proportional to 15,718.20, 23,538.42 and 9,124.40

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Solution

The fourth proportional to 15,718.20, 23,538.42 and 9,124.40 is: 13,664.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,718.20 : 23,538.42 = 9,124.40 : x
  2. Step 2: Convert to fraction form
    15,718.20/23,538.42 = 9,124.40/x
  3. Step 3: Cross multiply
    15,718.20x = 23,538.42 × 9,124.40
  4. Step 4: Simplify right side
    15,718.20x = 214,773,959.45
  5. Step 5: Solve for x
    x = 214,773,959.45/15,718.20
  6. Step 6: Final answer
    x = 13,664.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.