Home / 7,478.96-10,320.08-4,292.10

Finding the Fourth Proportional to 7,478.96, 10,320.08 and 4,292.10

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Solution

The fourth proportional to 7,478.96, 10,320.08 and 4,292.10 is: 5,922.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,478.96 : 10,320.08 = 4,292.10 : x
  2. Step 2: Convert to fraction form
    7,478.96/10,320.08 = 4,292.10/x
  3. Step 3: Cross multiply
    7,478.96x = 10,320.08 × 4,292.10
  4. Step 4: Simplify right side
    7,478.96x = 44,294,793.91
  5. Step 5: Solve for x
    x = 44,294,793.91/7,478.96
  6. Step 6: Final answer
    x = 5,922.59

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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.