Home / 7,402.60-10,206.04-5,280.56

Finding the Fourth Proportional to 7,402.60, 10,206.04 and 5,280.56

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Solution

The fourth proportional to 7,402.60, 10,206.04 and 5,280.56 is: 7,280.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,402.60 : 10,206.04 = 5,280.56 : x
  2. Step 2: Convert to fraction form
    7,402.60/10,206.04 = 5,280.56/x
  3. Step 3: Cross multiply
    7,402.60x = 10,206.04 × 5,280.56
  4. Step 4: Simplify right side
    7,402.60x = 53,893,606.58
  5. Step 5: Solve for x
    x = 53,893,606.58/7,402.60
  6. Step 6: Final answer
    x = 7,280.36

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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.