Home / 13,154.17-18,152.45-7,185.87

Finding the Fourth Proportional to 13,154.17, 18,152.45 and 7,185.87

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Solution

The fourth proportional to 13,154.17, 18,152.45 and 7,185.87 is: 9,916.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,154.17 : 18,152.45 = 7,185.87 : x
  2. Step 2: Convert to fraction form
    13,154.17/18,152.45 = 7,185.87/x
  3. Step 3: Cross multiply
    13,154.17x = 18,152.45 × 7,185.87
  4. Step 4: Simplify right side
    13,154.17x = 130,441,145.88
  5. Step 5: Solve for x
    x = 130,441,145.88/13,154.17
  6. Step 6: Final answer
    x = 9,916.33

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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.