Home / 10,618.02-15,944.85-7,985.52

Finding the Fourth Proportional to 10,618.02, 15,944.85 and 7,985.52

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Solution

The fourth proportional to 10,618.02, 15,944.85 and 7,985.52 is: 11,991.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,618.02 : 15,944.85 = 7,985.52 : x
  2. Step 2: Convert to fraction form
    10,618.02/15,944.85 = 7,985.52/x
  3. Step 3: Cross multiply
    10,618.02x = 15,944.85 × 7,985.52
  4. Step 4: Simplify right side
    10,618.02x = 127,327,918.57
  5. Step 5: Solve for x
    x = 127,327,918.57/10,618.02
  6. Step 6: Final answer
    x = 11,991.68

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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.