Home / 18,718.08-25,830-10,332.96

Finding the Fourth Proportional to 18,718.08, 25,830 and 10,332.96

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Solution

The fourth proportional to 18,718.08, 25,830 and 10,332.96 is: 14,258.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,718.08 : 25,830 = 10,332.96 : x
  2. Step 2: Convert to fraction form
    18,718.08/25,830 = 10,332.96/x
  3. Step 3: Cross multiply
    18,718.08x = 25,830 × 10,332.96
  4. Step 4: Simplify right side
    18,718.08x = 266,900,356.80
  5. Step 5: Solve for x
    x = 266,900,356.80/18,718.08
  6. Step 6: Final answer
    x = 14,258.96

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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.