Home / 13,543.08-18,687.48-7,574.16

Finding the Fourth Proportional to 13,543.08, 18,687.48 and 7,574.16

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Solution

The fourth proportional to 13,543.08, 18,687.48 and 7,574.16 is: 10,451.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,543.08 : 18,687.48 = 7,574.16 : x
  2. Step 2: Convert to fraction form
    13,543.08/18,687.48 = 7,574.16/x
  3. Step 3: Cross multiply
    13,543.08x = 18,687.48 × 7,574.16
  4. Step 4: Simplify right side
    13,543.08x = 141,541,963.52
  5. Step 5: Solve for x
    x = 141,541,963.52/13,543.08
  6. Step 6: Final answer
    x = 10,451.24

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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.