Home / 7,490.61-10,341.45-6,660.18

Finding the Fourth Proportional to 7,490.61, 10,341.45 and 6,660.18

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Solution

The fourth proportional to 7,490.61, 10,341.45 and 6,660.18 is: 9,194.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,490.61 : 10,341.45 = 6,660.18 : x
  2. Step 2: Convert to fraction form
    7,490.61/10,341.45 = 6,660.18/x
  3. Step 3: Cross multiply
    7,490.61x = 10,341.45 × 6,660.18
  4. Step 4: Simplify right side
    7,490.61x = 68,875,918.46
  5. Step 5: Solve for x
    x = 68,875,918.46/7,490.61
  6. Step 6: Final answer
    x = 9,194.97

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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.