Home / 10,291.28-15,440.15-6,135.98

Finding the Fourth Proportional to 10,291.28, 15,440.15 and 6,135.98

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Solution

The fourth proportional to 10,291.28, 15,440.15 and 6,135.98 is: 9,205.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,291.28 : 15,440.15 = 6,135.98 : x
  2. Step 2: Convert to fraction form
    10,291.28/15,440.15 = 6,135.98/x
  3. Step 3: Cross multiply
    10,291.28x = 15,440.15 × 6,135.98
  4. Step 4: Simplify right side
    10,291.28x = 94,740,389.74
  5. Step 5: Solve for x
    x = 94,740,389.74/10,291.28
  6. Step 6: Final answer
    x = 9,205.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.