Home / 15,372.02-21,211.65-8,657.48

Finding the Fourth Proportional to 15,372.02, 21,211.65 and 8,657.48

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Solution

The fourth proportional to 15,372.02, 21,211.65 and 8,657.48 is: 11,946.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,372.02 : 21,211.65 = 8,657.48 : x
  2. Step 2: Convert to fraction form
    15,372.02/21,211.65 = 8,657.48/x
  3. Step 3: Cross multiply
    15,372.02x = 21,211.65 × 8,657.48
  4. Step 4: Simplify right side
    15,372.02x = 183,639,435.64
  5. Step 5: Solve for x
    x = 183,639,435.64/15,372.02
  6. Step 6: Final answer
    x = 11,946.34

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Double scale
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Similar ratio
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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.