Home / 18,501.28-25,531.80-10,117.84

Finding the Fourth Proportional to 18,501.28, 25,531.80 and 10,117.84

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Solution

The fourth proportional to 18,501.28, 25,531.80 and 10,117.84 is: 13,962.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,501.28 : 25,531.80 = 10,117.84 : x
  2. Step 2: Convert to fraction form
    18,501.28/25,531.80 = 10,117.84/x
  3. Step 3: Cross multiply
    18,501.28x = 25,531.80 × 10,117.84
  4. Step 4: Simplify right side
    18,501.28x = 258,326,667.31
  5. Step 5: Solve for x
    x = 258,326,667.31/18,501.28
  6. Step 6: Final answer
    x = 13,962.64

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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.