Home / 13,395.60-18,487.02-7,429.14

Finding the Fourth Proportional to 13,395.60, 18,487.02 and 7,429.14

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Solution

The fourth proportional to 13,395.60, 18,487.02 and 7,429.14 is: 10,252.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,395.60 : 18,487.02 = 7,429.14 : x
  2. Step 2: Convert to fraction form
    13,395.60/18,487.02 = 7,429.14/x
  3. Step 3: Cross multiply
    13,395.60x = 18,487.02 × 7,429.14
  4. Step 4: Simplify right side
    13,395.60x = 137,342,659.76
  5. Step 5: Solve for x
    x = 137,342,659.76/13,395.60
  6. Step 6: Final answer
    x = 10,252.82

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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.