Home / 10,970.13-15,138.40-6,255.93

Finding the Fourth Proportional to 10,970.13, 15,138.40 and 6,255.93

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Solution

The fourth proportional to 10,970.13, 15,138.40 and 6,255.93 is: 8,632.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,970.13 : 15,138.40 = 6,255.93 : x
  2. Step 2: Convert to fraction form
    10,970.13/15,138.40 = 6,255.93/x
  3. Step 3: Cross multiply
    10,970.13x = 15,138.40 × 6,255.93
  4. Step 4: Simplify right side
    10,970.13x = 94,704,770.71
  5. Step 5: Solve for x
    x = 94,704,770.71/10,970.13
  6. Step 6: Final answer
    x = 8,632.97

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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.