Home / 15,602.28-21,531.48-8,529.36

Finding the Fourth Proportional to 15,602.28, 21,531.48 and 8,529.36

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Solution

The fourth proportional to 15,602.28, 21,531.48 and 8,529.36 is: 11,770.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,602.28 : 21,531.48 = 8,529.36 : x
  2. Step 2: Convert to fraction form
    15,602.28/21,531.48 = 8,529.36/x
  3. Step 3: Cross multiply
    15,602.28x = 21,531.48 × 8,529.36
  4. Step 4: Simplify right side
    15,602.28x = 183,649,744.25
  5. Step 5: Solve for x
    x = 183,649,744.25/15,602.28
  6. Step 6: Final answer
    x = 11,770.70

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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.