Home / 9,143.04-12,617.64-5,608.20

Finding the Fourth Proportional to 9,143.04, 12,617.64 and 5,608.20

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Solution

The fourth proportional to 9,143.04, 12,617.64 and 5,608.20 is: 7,739.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,143.04 : 12,617.64 = 5,608.20 : x
  2. Step 2: Convert to fraction form
    9,143.04/12,617.64 = 5,608.20/x
  3. Step 3: Cross multiply
    9,143.04x = 12,617.64 × 5,608.20
  4. Step 4: Simplify right side
    9,143.04x = 70,762,248.65
  5. Step 5: Solve for x
    x = 70,762,248.65/9,143.04
  6. Step 6: Final answer
    x = 7,739.47

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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.