Home / 15,829.02-21,843.18-8,657.52

Finding the Fourth Proportional to 15,829.02, 21,843.18 and 8,657.52

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Solution

The fourth proportional to 15,829.02, 21,843.18 and 8,657.52 is: 11,946.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,829.02 : 21,843.18 = 8,657.52 : x
  2. Step 2: Convert to fraction form
    15,829.02/21,843.18 = 8,657.52/x
  3. Step 3: Cross multiply
    15,829.02x = 21,843.18 × 8,657.52
  4. Step 4: Simplify right side
    15,829.02x = 189,107,767.71
  5. Step 5: Solve for x
    x = 189,107,767.71/15,829.02
  6. Step 6: Final answer
    x = 11,946.90

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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.