Home / 11,348.78-15,660.47-6,312.87

Finding the Fourth Proportional to 11,348.78, 15,660.47 and 6,312.87

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Solution

The fourth proportional to 11,348.78, 15,660.47 and 6,312.87 is: 8,711.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,348.78 : 15,660.47 = 6,312.87 : x
  2. Step 2: Convert to fraction form
    11,348.78/15,660.47 = 6,312.87/x
  3. Step 3: Cross multiply
    11,348.78x = 15,660.47 × 6,312.87
  4. Step 4: Simplify right side
    11,348.78x = 98,862,527.03
  5. Step 5: Solve for x
    x = 98,862,527.03/11,348.78
  6. Step 6: Final answer
    x = 8,711.30

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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.