Home / 10,245.02-14,139.93-9,777.55

Finding the Fourth Proportional to 10,245.02, 14,139.93 and 9,777.55

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Solution

The fourth proportional to 10,245.02, 14,139.93 and 9,777.55 is: 13,494.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,245.02 : 14,139.93 = 9,777.55 : x
  2. Step 2: Convert to fraction form
    10,245.02/14,139.93 = 9,777.55/x
  3. Step 3: Cross multiply
    10,245.02x = 14,139.93 × 9,777.55
  4. Step 4: Simplify right side
    10,245.02x = 138,253,872.57
  5. Step 5: Solve for x
    x = 138,253,872.57/10,245.02
  6. Step 6: Final answer
    x = 13,494.74

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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.