Home / 13,153.86-18,152.10-7,184.97

Finding the Fourth Proportional to 13,153.86, 18,152.10 and 7,184.97

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Solution

The fourth proportional to 13,153.86, 18,152.10 and 7,184.97 is: 9,915.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,153.86 : 18,152.10 = 7,184.97 : x
  2. Step 2: Convert to fraction form
    13,153.86/18,152.10 = 7,184.97/x
  3. Step 3: Cross multiply
    13,153.86x = 18,152.10 × 7,184.97
  4. Step 4: Simplify right side
    13,153.86x = 130,422,293.94
  5. Step 5: Solve for x
    x = 130,422,293.94/13,153.86
  6. Step 6: Final answer
    x = 9,915.13

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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.