Home / 12,366.40-17,065.02-6,988.72

Finding the Fourth Proportional to 12,366.40, 17,065.02 and 6,988.72

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Solution

The fourth proportional to 12,366.40, 17,065.02 and 6,988.72 is: 9,644.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,366.40 : 17,065.02 = 6,988.72 : x
  2. Step 2: Convert to fraction form
    12,366.40/17,065.02 = 6,988.72/x
  3. Step 3: Cross multiply
    12,366.40x = 17,065.02 × 6,988.72
  4. Step 4: Simplify right side
    12,366.40x = 119,262,646.57
  5. Step 5: Solve for x
    x = 119,262,646.57/12,366.40
  6. Step 6: Final answer
    x = 9,644.09

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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.