Home / 15,601.95-21,528.18-8,887.71

Finding the Fourth Proportional to 15,601.95, 21,528.18 and 8,887.71

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Solution

The fourth proportional to 15,601.95, 21,528.18 and 8,887.71 is: 12,263.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,601.95 : 21,528.18 = 8,887.71 : x
  2. Step 2: Convert to fraction form
    15,601.95/21,528.18 = 8,887.71/x
  3. Step 3: Cross multiply
    15,601.95x = 21,528.18 × 8,887.71
  4. Step 4: Simplify right side
    15,601.95x = 191,336,122.41
  5. Step 5: Solve for x
    x = 191,336,122.41/15,601.95
  6. Step 6: Final answer
    x = 12,263.61

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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.