Home / 15,040.02-20,741.76-9,729.30

Finding the Fourth Proportional to 15,040.02, 20,741.76 and 9,729.30

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Solution

The fourth proportional to 15,040.02, 20,741.76 and 9,729.30 is: 13,417.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,040.02 : 20,741.76 = 9,729.30 : x
  2. Step 2: Convert to fraction form
    15,040.02/20,741.76 = 9,729.30/x
  3. Step 3: Cross multiply
    15,040.02x = 20,741.76 × 9,729.30
  4. Step 4: Simplify right side
    15,040.02x = 201,802,805.57
  5. Step 5: Solve for x
    x = 201,802,805.57/15,040.02
  6. Step 6: Final answer
    x = 13,417.72

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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.