Home / 16,869.85-23,280.15-9,316.50

Finding the Fourth Proportional to 16,869.85, 23,280.15 and 9,316.50

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Solution

The fourth proportional to 16,869.85, 23,280.15 and 9,316.50 is: 12,856.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,869.85 : 23,280.15 = 9,316.50 : x
  2. Step 2: Convert to fraction form
    16,869.85/23,280.15 = 9,316.50/x
  3. Step 3: Cross multiply
    16,869.85x = 23,280.15 × 9,316.50
  4. Step 4: Simplify right side
    16,869.85x = 216,889,517.48
  5. Step 5: Solve for x
    x = 216,889,517.48/16,869.85
  6. Step 6: Final answer
    x = 12,856.64

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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.