Home / 10,988.95-15,165.19-6,209.95

Finding the Fourth Proportional to 10,988.95, 15,165.19 and 6,209.95

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Solution

The fourth proportional to 10,988.95, 15,165.19 and 6,209.95 is: 8,569.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,988.95 : 15,165.19 = 6,209.95 : x
  2. Step 2: Convert to fraction form
    10,988.95/15,165.19 = 6,209.95/x
  3. Step 3: Cross multiply
    10,988.95x = 15,165.19 × 6,209.95
  4. Step 4: Simplify right side
    10,988.95x = 94,175,071.64
  5. Step 5: Solve for x
    x = 94,175,071.64/10,988.95
  6. Step 6: Final answer
    x = 8,569.98

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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.