Home / 7,407.60-10,215.72-4,750.32

Finding the Fourth Proportional to 7,407.60, 10,215.72 and 4,750.32

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Solution

The fourth proportional to 7,407.60, 10,215.72 and 4,750.32 is: 6,551.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,407.60 : 10,215.72 = 4,750.32 : x
  2. Step 2: Convert to fraction form
    7,407.60/10,215.72 = 4,750.32/x
  3. Step 3: Cross multiply
    7,407.60x = 10,215.72 × 4,750.32
  4. Step 4: Simplify right side
    7,407.60x = 48,527,939.03
  5. Step 5: Solve for x
    x = 48,527,939.03/7,407.60
  6. Step 6: Final answer
    x = 6,551.10

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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.