Home / 7,521.43-10,379.45-4,164.18

Finding the Fourth Proportional to 7,521.43, 10,379.45 and 4,164.18

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Solution

The fourth proportional to 7,521.43, 10,379.45 and 4,164.18 is: 5,746.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,521.43 : 10,379.45 = 4,164.18 : x
  2. Step 2: Convert to fraction form
    7,521.43/10,379.45 = 4,164.18/x
  3. Step 3: Cross multiply
    7,521.43x = 10,379.45 × 4,164.18
  4. Step 4: Simplify right side
    7,521.43x = 43,221,898.10
  5. Step 5: Solve for x
    x = 43,221,898.10/7,521.43
  6. Step 6: Final answer
    x = 5,746.50

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Double scale
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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.