Home / 15,583.68-21,502.60-8,868.92

Finding the Fourth Proportional to 15,583.68, 21,502.60 and 8,868.92

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Solution

The fourth proportional to 15,583.68, 21,502.60 and 8,868.92 is: 12,237.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,583.68 : 21,502.60 = 8,868.92 : x
  2. Step 2: Convert to fraction form
    15,583.68/21,502.60 = 8,868.92/x
  3. Step 3: Cross multiply
    15,583.68x = 21,502.60 × 8,868.92
  4. Step 4: Simplify right side
    15,583.68x = 190,704,839.19
  5. Step 5: Solve for x
    x = 190,704,839.19/15,583.68
  6. Step 6: Final answer
    x = 12,237.47

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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.