Home / 15,985.02-22,059.78-8,911.92

Finding the Fourth Proportional to 15,985.02, 22,059.78 and 8,911.92

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Solution

The fourth proportional to 15,985.02, 22,059.78 and 8,911.92 is: 12,298.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,985.02 : 22,059.78 = 8,911.92 : x
  2. Step 2: Convert to fraction form
    15,985.02/22,059.78 = 8,911.92/x
  3. Step 3: Cross multiply
    15,985.02x = 22,059.78 × 8,911.92
  4. Step 4: Simplify right side
    15,985.02x = 196,594,994.58
  5. Step 5: Solve for x
    x = 196,594,994.58/15,985.02
  6. Step 6: Final answer
    x = 12,298.70

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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.