Home / 15,829.48-23,728.70-8,812.86

Finding the Fourth Proportional to 15,829.48, 23,728.70 and 8,812.86

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Solution

The fourth proportional to 15,829.48, 23,728.70 and 8,812.86 is: 13,210.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,829.48 : 23,728.70 = 8,812.86 : x
  2. Step 2: Convert to fraction form
    15,829.48/23,728.70 = 8,812.86/x
  3. Step 3: Cross multiply
    15,829.48x = 23,728.70 × 8,812.86
  4. Step 4: Simplify right side
    15,829.48x = 209,117,711.08
  5. Step 5: Solve for x
    x = 209,117,711.08/15,829.48
  6. Step 6: Final answer
    x = 13,210.65

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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.