Home / 15,506.00-21,398.18-8,432.40

Finding the Fourth Proportional to 15,506.00, 21,398.18 and 8,432.40

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Solution

The fourth proportional to 15,506.00, 21,398.18 and 8,432.40 is: 11,636.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,506.00 : 21,398.18 = 8,432.40 : x
  2. Step 2: Convert to fraction form
    15,506.00/21,398.18 = 8,432.40/x
  3. Step 3: Cross multiply
    15,506.00x = 21,398.18 × 8,432.40
  4. Step 4: Simplify right side
    15,506.00x = 180,438,051.11
  5. Step 5: Solve for x
    x = 180,438,051.11/15,506.00
  6. Step 6: Final answer
    x = 11,636.66

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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.