Home / 18,437.40-25,442.10-10,477.80

Finding the Fourth Proportional to 18,437.40, 25,442.10 and 10,477.80

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Solution

The fourth proportional to 18,437.40, 25,442.10 and 10,477.80 is: 14,458.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,437.40 : 25,442.10 = 10,477.80 : x
  2. Step 2: Convert to fraction form
    18,437.40/25,442.10 = 10,477.80/x
  3. Step 3: Cross multiply
    18,437.40x = 25,442.10 × 10,477.80
  4. Step 4: Simplify right side
    18,437.40x = 266,577,235.38
  5. Step 5: Solve for x
    x = 266,577,235.38/18,437.40
  6. Step 6: Final answer
    x = 14,458.50

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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.