Home / 13,632.68-20,445.98-5,312.92

Finding the Fourth Proportional to 13,632.68, 20,445.98 and 5,312.92

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Solution

The fourth proportional to 13,632.68, 20,445.98 and 5,312.92 is: 7,968.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,632.68 : 20,445.98 = 5,312.92 : x
  2. Step 2: Convert to fraction form
    13,632.68/20,445.98 = 5,312.92/x
  3. Step 3: Cross multiply
    13,632.68x = 20,445.98 × 5,312.92
  4. Step 4: Simplify right side
    13,632.68x = 108,627,856.06
  5. Step 5: Solve for x
    x = 108,627,856.06/13,632.68
  6. Step 6: Final answer
    x = 7,968.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.