Home / 18,428.86-25,437.18-10,475.44

Finding the Fourth Proportional to 18,428.86, 25,437.18 and 10,475.44

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Solution

The fourth proportional to 18,428.86, 25,437.18 and 10,475.44 is: 14,459.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,428.86 : 25,437.18 = 10,475.44 : x
  2. Step 2: Convert to fraction form
    18,428.86/25,437.18 = 10,475.44/x
  3. Step 3: Cross multiply
    18,428.86x = 25,437.18 × 10,475.44
  4. Step 4: Simplify right side
    18,428.86x = 266,465,652.86
  5. Step 5: Solve for x
    x = 266,465,652.86/18,428.86
  6. Step 6: Final answer
    x = 14,459.15

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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.