Home / 15,411.90-21,267.20-9,442.76

Finding the Fourth Proportional to 15,411.90, 21,267.20 and 9,442.76

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Solution

The fourth proportional to 15,411.90, 21,267.20 and 9,442.76 is: 13,030.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,411.90 : 21,267.20 = 9,442.76 : x
  2. Step 2: Convert to fraction form
    15,411.90/21,267.20 = 9,442.76/x
  3. Step 3: Cross multiply
    15,411.90x = 21,267.20 × 9,442.76
  4. Step 4: Simplify right side
    15,411.90x = 200,820,982.74
  5. Step 5: Solve for x
    x = 200,820,982.74/15,411.90
  6. Step 6: Final answer
    x = 13,030.25

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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.