Home / 7,551.80-10,421.55-4,407.38

Finding the Fourth Proportional to 7,551.80, 10,421.55 and 4,407.38

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Solution

The fourth proportional to 7,551.80, 10,421.55 and 4,407.38 is: 6,082.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,551.80 : 10,421.55 = 4,407.38 : x
  2. Step 2: Convert to fraction form
    7,551.80/10,421.55 = 4,407.38/x
  3. Step 3: Cross multiply
    7,551.80x = 10,421.55 × 4,407.38
  4. Step 4: Simplify right side
    7,551.80x = 45,931,731.04
  5. Step 5: Solve for x
    x = 45,931,731.04/7,551.80
  6. Step 6: Final answer
    x = 6,082.22

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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.