Home / 15,803.30-21,808.50-9,088.61

Finding the Fourth Proportional to 15,803.30, 21,808.50 and 9,088.61

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Solution

The fourth proportional to 15,803.30, 21,808.50 and 9,088.61 is: 12,542.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,803.30 : 21,808.50 = 9,088.61 : x
  2. Step 2: Convert to fraction form
    15,803.30/21,808.50 = 9,088.61/x
  3. Step 3: Cross multiply
    15,803.30x = 21,808.50 × 9,088.61
  4. Step 4: Simplify right side
    15,803.30x = 198,208,951.19
  5. Step 5: Solve for x
    x = 198,208,951.19/15,803.30
  6. Step 6: Final answer
    x = 12,542.25

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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.