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Finding the Fourth Proportional to 15,602.40, 23,409.44 and 8,101.28

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Solution

The fourth proportional to 15,602.40, 23,409.44 and 8,101.28 is: 12,154.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,602.40 : 23,409.44 = 8,101.28 : x
  2. Step 2: Convert to fraction form
    15,602.40/23,409.44 = 8,101.28/x
  3. Step 3: Cross multiply
    15,602.40x = 23,409.44 × 8,101.28
  4. Step 4: Simplify right side
    15,602.40x = 189,646,428.08
  5. Step 5: Solve for x
    x = 189,646,428.08/15,602.40
  6. Step 6: Final answer
    x = 12,154.95

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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.