Home / 11,028.40-15,218.88-6,312.52

Finding the Fourth Proportional to 11,028.40, 15,218.88 and 6,312.52

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Solution

The fourth proportional to 11,028.40, 15,218.88 and 6,312.52 is: 8,711.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,028.40 : 15,218.88 = 6,312.52 : x
  2. Step 2: Convert to fraction form
    11,028.40/15,218.88 = 6,312.52/x
  3. Step 3: Cross multiply
    11,028.40x = 15,218.88 × 6,312.52
  4. Step 4: Simplify right side
    11,028.40x = 96,069,484.38
  5. Step 5: Solve for x
    x = 96,069,484.38/11,028.40
  6. Step 6: Final answer
    x = 8,711.10

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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.