Home / 7,475.76-10,316.12-4,118.56

Finding the Fourth Proportional to 7,475.76, 10,316.12 and 4,118.56

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Solution

The fourth proportional to 7,475.76, 10,316.12 and 4,118.56 is: 5,683.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,475.76 : 10,316.12 = 4,118.56 : x
  2. Step 2: Convert to fraction form
    7,475.76/10,316.12 = 4,118.56/x
  3. Step 3: Cross multiply
    7,475.76x = 10,316.12 × 4,118.56
  4. Step 4: Simplify right side
    7,475.76x = 42,487,559.19
  5. Step 5: Solve for x
    x = 42,487,559.19/7,475.76
  6. Step 6: Final answer
    x = 5,683.38

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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.