Home / 18,613.79-25,681.55-11,056.33

Finding the Fourth Proportional to 18,613.79, 25,681.55 and 11,056.33

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Solution

The fourth proportional to 18,613.79, 25,681.55 and 11,056.33 is: 15,254.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,613.79 : 25,681.55 = 11,056.33 : x
  2. Step 2: Convert to fraction form
    18,613.79/25,681.55 = 11,056.33/x
  3. Step 3: Cross multiply
    18,613.79x = 25,681.55 × 11,056.33
  4. Step 4: Simplify right side
    18,613.79x = 283,943,655.15
  5. Step 5: Solve for x
    x = 283,943,655.15/18,613.79
  6. Step 6: Final answer
    x = 15,254.48

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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.