Home / 15,411.34-21,267.60-8,337.74

Finding the Fourth Proportional to 15,411.34, 21,267.60 and 8,337.74

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Solution

The fourth proportional to 15,411.34, 21,267.60 and 8,337.74 is: 11,506.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,411.34 : 21,267.60 = 8,337.74 : x
  2. Step 2: Convert to fraction form
    15,411.34/21,267.60 = 8,337.74/x
  3. Step 3: Cross multiply
    15,411.34x = 21,267.60 × 8,337.74
  4. Step 4: Simplify right side
    15,411.34x = 177,323,719.22
  5. Step 5: Solve for x
    x = 177,323,719.22/15,411.34
  6. Step 6: Final answer
    x = 11,506.06

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Double scale
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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.