Home / 15,476.95-21,359.52-8,763.76

Finding the Fourth Proportional to 15,476.95, 21,359.52 and 8,763.76

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Solution

The fourth proportional to 15,476.95, 21,359.52 and 8,763.76 is: 12,094.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,476.95 : 21,359.52 = 8,763.76 : x
  2. Step 2: Convert to fraction form
    15,476.95/21,359.52 = 8,763.76/x
  3. Step 3: Cross multiply
    15,476.95x = 21,359.52 × 8,763.76
  4. Step 4: Simplify right side
    15,476.95x = 187,189,733.69
  5. Step 5: Solve for x
    x = 187,189,733.69/15,476.95
  6. Step 6: Final answer
    x = 12,094.74

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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.