Home / 7,721.38-10,655.31-4,577.50

Finding the Fourth Proportional to 7,721.38, 10,655.31 and 4,577.50

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Solution

The fourth proportional to 7,721.38, 10,655.31 and 4,577.50 is: 6,316.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,721.38 : 10,655.31 = 4,577.50 : x
  2. Step 2: Convert to fraction form
    7,721.38/10,655.31 = 4,577.50/x
  3. Step 3: Cross multiply
    7,721.38x = 10,655.31 × 4,577.50
  4. Step 4: Simplify right side
    7,721.38x = 48,774,681.53
  5. Step 5: Solve for x
    x = 48,774,681.53/7,721.38
  6. Step 6: Final answer
    x = 6,316.83

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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.