Home / 15,347.47-22,909.16-13,170.19

Finding the Fourth Proportional to 15,347.47, 22,909.16 and 13,170.19

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Solution

The fourth proportional to 15,347.47, 22,909.16 and 13,170.19 is: 19,659.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,347.47 : 22,909.16 = 13,170.19 : x
  2. Step 2: Convert to fraction form
    15,347.47/22,909.16 = 13,170.19/x
  3. Step 3: Cross multiply
    15,347.47x = 22,909.16 × 13,170.19
  4. Step 4: Simplify right side
    15,347.47x = 301,717,989.94
  5. Step 5: Solve for x
    x = 301,717,989.94/15,347.47
  6. Step 6: Final answer
    x = 19,659.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.