Home / 16,139.02-22,267.93-9,420.81

Finding the Fourth Proportional to 16,139.02, 22,267.93 and 9,420.81

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Solution

The fourth proportional to 16,139.02, 22,267.93 and 9,420.81 is: 12,998.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,139.02 : 22,267.93 = 9,420.81 : x
  2. Step 2: Convert to fraction form
    16,139.02/22,267.93 = 9,420.81/x
  3. Step 3: Cross multiply
    16,139.02x = 22,267.93 × 9,420.81
  4. Step 4: Simplify right side
    16,139.02x = 209,781,937.62
  5. Step 5: Solve for x
    x = 209,781,937.62/16,139.02
  6. Step 6: Final answer
    x = 12,998.43

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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.