Home / 15,637.02-21,577.14-12,458.40

Finding the Fourth Proportional to 15,637.02, 21,577.14 and 12,458.40

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Solution

The fourth proportional to 15,637.02, 21,577.14 and 12,458.40 is: 17,191.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,637.02 : 21,577.14 = 12,458.40 : x
  2. Step 2: Convert to fraction form
    15,637.02/21,577.14 = 12,458.40/x
  3. Step 3: Cross multiply
    15,637.02x = 21,577.14 × 12,458.40
  4. Step 4: Simplify right side
    15,637.02x = 268,816,640.98
  5. Step 5: Solve for x
    x = 268,816,640.98/15,637.02
  6. Step 6: Final answer
    x = 17,191.04

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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.