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Finding the Fourth Proportional to 15,644.01, 21,580.02 and 9,671.47

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Solution

The fourth proportional to 15,644.01, 21,580.02 and 9,671.47 is: 13,341.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,644.01 : 21,580.02 = 9,671.47 : x
  2. Step 2: Convert to fraction form
    15,644.01/21,580.02 = 9,671.47/x
  3. Step 3: Cross multiply
    15,644.01x = 21,580.02 × 9,671.47
  4. Step 4: Simplify right side
    15,644.01x = 208,710,516.03
  5. Step 5: Solve for x
    x = 208,710,516.03/15,644.01
  6. Step 6: Final answer
    x = 13,341.24

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Half scale
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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.