Home / 15,242.57-21,036.02-8,528.82

Finding the Fourth Proportional to 15,242.57, 21,036.02 and 8,528.82

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Solution

The fourth proportional to 15,242.57, 21,036.02 and 8,528.82 is: 11,770.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,242.57 : 21,036.02 = 8,528.82 : x
  2. Step 2: Convert to fraction form
    15,242.57/21,036.02 = 8,528.82/x
  3. Step 3: Cross multiply
    15,242.57x = 21,036.02 × 8,528.82
  4. Step 4: Simplify right side
    15,242.57x = 179,412,385.45
  5. Step 5: Solve for x
    x = 179,412,385.45/15,242.57
  6. Step 6: Final answer
    x = 11,770.49

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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.