Home / 15,602.11-21,532.40-8,889.91

Finding the Fourth Proportional to 15,602.11, 21,532.40 and 8,889.91

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Solution

The fourth proportional to 15,602.11, 21,532.40 and 8,889.91 is: 12,268.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,602.11 : 21,532.40 = 8,889.91 : x
  2. Step 2: Convert to fraction form
    15,602.11/21,532.40 = 8,889.91/x
  3. Step 3: Cross multiply
    15,602.11x = 21,532.40 × 8,889.91
  4. Step 4: Simplify right side
    15,602.11x = 191,421,098.08
  5. Step 5: Solve for x
    x = 191,421,098.08/15,602.11
  6. Step 6: Final answer
    x = 12,268.92

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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.