Home / 13,417.69-18,517.02-7,449.45

Finding the Fourth Proportional to 13,417.69, 18,517.02 and 7,449.45

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Solution

The fourth proportional to 13,417.69, 18,517.02 and 7,449.45 is: 10,280.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,417.69 : 18,517.02 = 7,449.45 : x
  2. Step 2: Convert to fraction form
    13,417.69/18,517.02 = 7,449.45/x
  3. Step 3: Cross multiply
    13,417.69x = 18,517.02 × 7,449.45
  4. Step 4: Simplify right side
    13,417.69x = 137,941,614.64
  5. Step 5: Solve for x
    x = 137,941,614.64/13,417.69
  6. Step 6: Final answer
    x = 10,280.58

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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.