Home / 15,740.16-21,721.50-9,026.04

Finding the Fourth Proportional to 15,740.16, 21,721.50 and 9,026.04

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Solution

The fourth proportional to 15,740.16, 21,721.50 and 9,026.04 is: 12,455.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,740.16 : 21,721.50 = 9,026.04 : x
  2. Step 2: Convert to fraction form
    15,740.16/21,721.50 = 9,026.04/x
  3. Step 3: Cross multiply
    15,740.16x = 21,721.50 × 9,026.04
  4. Step 4: Simplify right side
    15,740.16x = 196,059,127.86
  5. Step 5: Solve for x
    x = 196,059,127.86/15,740.16
  6. Step 6: Final answer
    x = 12,455.98

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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.