Home / 14,013.47-21,020.15-4,654.20

Finding the Fourth Proportional to 14,013.47, 21,020.15 and 4,654.20

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Solution

The fourth proportional to 14,013.47, 21,020.15 and 4,654.20 is: 6,981.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,013.47 : 21,020.15 = 4,654.20 : x
  2. Step 2: Convert to fraction form
    14,013.47/21,020.15 = 4,654.20/x
  3. Step 3: Cross multiply
    14,013.47x = 21,020.15 × 4,654.20
  4. Step 4: Simplify right side
    14,013.47x = 97,831,958.86
  5. Step 5: Solve for x
    x = 97,831,958.86/14,013.47
  6. Step 6: Final answer
    x = 6,981.28

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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.