Home / 18,436.77-25,443.18-10,478.93

Finding the Fourth Proportional to 18,436.77, 25,443.18 and 10,478.93

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Solution

The fourth proportional to 18,436.77, 25,443.18 and 10,478.93 is: 14,461.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,436.77 : 25,443.18 = 10,478.93 : x
  2. Step 2: Convert to fraction form
    18,436.77/25,443.18 = 10,478.93/x
  3. Step 3: Cross multiply
    18,436.77x = 25,443.18 × 10,478.93
  4. Step 4: Simplify right side
    18,436.77x = 266,617,174.98
  5. Step 5: Solve for x
    x = 266,617,174.98/18,436.77
  6. Step 6: Final answer
    x = 14,461.17

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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.