Home / 10,990.13-15,166.98-6,275.93

Finding the Fourth Proportional to 10,990.13, 15,166.98 and 6,275.93

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Solution

The fourth proportional to 10,990.13, 15,166.98 and 6,275.93 is: 8,661.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,990.13 : 15,166.98 = 6,275.93 : x
  2. Step 2: Convert to fraction form
    10,990.13/15,166.98 = 6,275.93/x
  3. Step 3: Cross multiply
    10,990.13x = 15,166.98 × 6,275.93
  4. Step 4: Simplify right side
    10,990.13x = 95,186,828.96
  5. Step 5: Solve for x
    x = 95,186,828.96/10,990.13
  6. Step 6: Final answer
    x = 8,661.12

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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.