Home / 15,706.28-21,673.98-8,535.92

Finding the Fourth Proportional to 15,706.28, 21,673.98 and 8,535.92

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Solution

The fourth proportional to 15,706.28, 21,673.98 and 8,535.92 is: 11,779.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,706.28 : 21,673.98 = 8,535.92 : x
  2. Step 2: Convert to fraction form
    15,706.28/21,673.98 = 8,535.92/x
  3. Step 3: Cross multiply
    15,706.28x = 21,673.98 × 8,535.92
  4. Step 4: Simplify right side
    15,706.28x = 185,007,359.36
  5. Step 5: Solve for x
    x = 185,007,359.36/15,706.28
  6. Step 6: Final answer
    x = 11,779.20

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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.