Home / 11,210.76-15,470.53-6,431.50

Finding the Fourth Proportional to 11,210.76, 15,470.53 and 6,431.50

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Solution

The fourth proportional to 11,210.76, 15,470.53 and 6,431.50 is: 8,875.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,210.76 : 15,470.53 = 6,431.50 : x
  2. Step 2: Convert to fraction form
    11,210.76/15,470.53 = 6,431.50/x
  3. Step 3: Cross multiply
    11,210.76x = 15,470.53 × 6,431.50
  4. Step 4: Simplify right side
    11,210.76x = 99,498,713.70
  5. Step 5: Solve for x
    x = 99,498,713.70/11,210.76
  6. Step 6: Final answer
    x = 8,875.29

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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.