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Finding the Fourth Proportional to 12,254.40, 18,281.52 and 10,526.40

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Solution

The fourth proportional to 12,254.40, 18,281.52 and 10,526.40 is: 15,703.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,254.40 : 18,281.52 = 10,526.40 : x
  2. Step 2: Convert to fraction form
    12,254.40/18,281.52 = 10,526.40/x
  3. Step 3: Cross multiply
    12,254.40x = 18,281.52 × 10,526.40
  4. Step 4: Simplify right side
    12,254.40x = 192,438,592.13
  5. Step 5: Solve for x
    x = 192,438,592.13/12,254.40
  6. Step 6: Final answer
    x = 15,703.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.