Home / 13,543.44-18,688.16-7,574.88

Finding the Fourth Proportional to 13,543.44, 18,688.16 and 7,574.88

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Solution

The fourth proportional to 13,543.44, 18,688.16 and 7,574.88 is: 10,452.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,543.44 : 18,688.16 = 7,574.88 : x
  2. Step 2: Convert to fraction form
    13,543.44/18,688.16 = 7,574.88/x
  3. Step 3: Cross multiply
    13,543.44x = 18,688.16 × 7,574.88
  4. Step 4: Simplify right side
    13,543.44x = 141,560,569.42
  5. Step 5: Solve for x
    x = 141,560,569.42/13,543.44
  6. Step 6: Final answer
    x = 10,452.33

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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.