Home / 7,402.47-10,215.55-4,045.43

Finding the Fourth Proportional to 7,402.47, 10,215.55 and 4,045.43

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Solution

The fourth proportional to 7,402.47, 10,215.55 and 4,045.43 is: 5,582.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,402.47 : 10,215.55 = 4,045.43 : x
  2. Step 2: Convert to fraction form
    7,402.47/10,215.55 = 4,045.43/x
  3. Step 3: Cross multiply
    7,402.47x = 10,215.55 × 4,045.43
  4. Step 4: Simplify right side
    7,402.47x = 41,326,292.44
  5. Step 5: Solve for x
    x = 41,326,292.44/7,402.47
  6. Step 6: Final answer
    x = 5,582.77

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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.