Home / 15,373.08-21,214.80-8,658.90

Finding the Fourth Proportional to 15,373.08, 21,214.80 and 8,658.90

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Solution

The fourth proportional to 15,373.08, 21,214.80 and 8,658.90 is: 11,949.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,373.08 : 21,214.80 = 8,658.90 : x
  2. Step 2: Convert to fraction form
    15,373.08/21,214.80 = 8,658.90/x
  3. Step 3: Cross multiply
    15,373.08x = 21,214.80 × 8,658.90
  4. Step 4: Simplify right side
    15,373.08x = 183,696,831.72
  5. Step 5: Solve for x
    x = 183,696,831.72/15,373.08
  6. Step 6: Final answer
    x = 11,949.25

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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.