Home / 12,140.66-16,752.95-8,955.69

Finding the Fourth Proportional to 12,140.66, 16,752.95 and 8,955.69

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Solution

The fourth proportional to 12,140.66, 16,752.95 and 8,955.69 is: 12,358.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,140.66 : 16,752.95 = 8,955.69 : x
  2. Step 2: Convert to fraction form
    12,140.66/16,752.95 = 8,955.69/x
  3. Step 3: Cross multiply
    12,140.66x = 16,752.95 × 8,955.69
  4. Step 4: Simplify right side
    12,140.66x = 150,034,226.79
  5. Step 5: Solve for x
    x = 150,034,226.79/12,140.66
  6. Step 6: Final answer
    x = 12,358.00

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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.