Home / 13,132.32-18,113.28-7,823.04

Finding the Fourth Proportional to 13,132.32, 18,113.28 and 7,823.04

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Solution

The fourth proportional to 13,132.32, 18,113.28 and 7,823.04 is: 10,790.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,132.32 : 18,113.28 = 7,823.04 : x
  2. Step 2: Convert to fraction form
    13,132.32/18,113.28 = 7,823.04/x
  3. Step 3: Cross multiply
    13,132.32x = 18,113.28 × 7,823.04
  4. Step 4: Simplify right side
    13,132.32x = 141,700,913.97
  5. Step 5: Solve for x
    x = 141,700,913.97/13,132.32
  6. Step 6: Final answer
    x = 10,790.24

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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.