Home / 15,330.61-21,156.83-9,364.96

Finding the Fourth Proportional to 15,330.61, 21,156.83 and 9,364.96

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Solution

The fourth proportional to 15,330.61, 21,156.83 and 9,364.96 is: 12,924.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,330.61 : 21,156.83 = 9,364.96 : x
  2. Step 2: Convert to fraction form
    15,330.61/21,156.83 = 9,364.96/x
  3. Step 3: Cross multiply
    15,330.61x = 21,156.83 × 9,364.96
  4. Step 4: Simplify right side
    15,330.61x = 198,132,819.85
  5. Step 5: Solve for x
    x = 198,132,819.85/15,330.61
  6. Step 6: Final answer
    x = 12,924.00

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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.