Home / 42,660.68-63,986.70-11,499.08

Finding the Fourth Proportional to 42,660.68, 63,986.70 and 11,499.08

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Solution

The fourth proportional to 42,660.68, 63,986.70 and 11,499.08 is: 17,247.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,660.68 : 63,986.70 = 11,499.08 : x
  2. Step 2: Convert to fraction form
    42,660.68/63,986.70 = 11,499.08/x
  3. Step 3: Cross multiply
    42,660.68x = 63,986.70 × 11,499.08
  4. Step 4: Simplify right side
    42,660.68x = 735,788,182.24
  5. Step 5: Solve for x
    x = 735,788,182.24/42,660.68
  6. Step 6: Final answer
    x = 17,247.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.