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Finding the Fourth Proportional to 18,437.58, 25,437.78 and 10,476.90

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Solution

The fourth proportional to 18,437.58, 25,437.78 and 10,476.90 is: 14,454.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,437.58 : 25,437.78 = 10,476.90 : x
  2. Step 2: Convert to fraction form
    18,437.58/25,437.78 = 10,476.90/x
  3. Step 3: Cross multiply
    18,437.58x = 25,437.78 × 10,476.90
  4. Step 4: Simplify right side
    18,437.58x = 266,509,077.28
  5. Step 5: Solve for x
    x = 266,509,077.28/18,437.58
  6. Step 6: Final answer
    x = 14,454.67

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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.