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Finding the Fourth Proportional to 15,657.55, 23,485.28 and 7,339.42

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Solution

The fourth proportional to 15,657.55, 23,485.28 and 7,339.42 is: 11,008.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,657.55 : 23,485.28 = 7,339.42 : x
  2. Step 2: Convert to fraction form
    15,657.55/23,485.28 = 7,339.42/x
  3. Step 3: Cross multiply
    15,657.55x = 23,485.28 × 7,339.42
  4. Step 4: Simplify right side
    15,657.55x = 172,368,333.74
  5. Step 5: Solve for x
    x = 172,368,333.74/15,657.55
  6. Step 6: Final answer
    x = 11,008.64

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.