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Finding the Fourth Proportional to 18,490.10, 25,510.10 and 10,526.68

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Solution

The fourth proportional to 18,490.10, 25,510.10 and 10,526.68 is: 14,523.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,490.10 : 25,510.10 = 10,526.68 : x
  2. Step 2: Convert to fraction form
    18,490.10/25,510.10 = 10,526.68/x
  3. Step 3: Cross multiply
    18,490.10x = 25,510.10 × 10,526.68
  4. Step 4: Simplify right side
    18,490.10x = 268,536,784.49
  5. Step 5: Solve for x
    x = 268,536,784.49/18,490.10
  6. Step 6: Final answer
    x = 14,523.28

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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.