Home / 12,209.40-16,839.66-10,510.71

Finding the Fourth Proportional to 12,209.40, 16,839.66 and 10,510.71

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Solution

The fourth proportional to 12,209.40, 16,839.66 and 10,510.71 is: 14,496.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,209.40 : 16,839.66 = 10,510.71 : x
  2. Step 2: Convert to fraction form
    12,209.40/16,839.66 = 10,510.71/x
  3. Step 3: Cross multiply
    12,209.40x = 16,839.66 × 10,510.71
  4. Step 4: Simplify right side
    12,209.40x = 176,996,782.76
  5. Step 5: Solve for x
    x = 176,996,782.76/12,209.40
  6. Step 6: Final answer
    x = 14,496.76

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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.