Home / 6,345.47-8,759.21-5,681.17

Finding the Fourth Proportional to 6,345.47, 8,759.21 and 5,681.17

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Solution

The fourth proportional to 6,345.47, 8,759.21 and 5,681.17 is: 7,842.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,345.47 : 8,759.21 = 5,681.17 : x
  2. Step 2: Convert to fraction form
    6,345.47/8,759.21 = 5,681.17/x
  3. Step 3: Cross multiply
    6,345.47x = 8,759.21 × 5,681.17
  4. Step 4: Simplify right side
    6,345.47x = 49,762,543.62
  5. Step 5: Solve for x
    x = 49,762,543.62/6,345.47
  6. Step 6: Final answer
    x = 7,842.21

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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.