Home / 18,271.64-25,214.84-9,888.12

Finding the Fourth Proportional to 18,271.64, 25,214.84 and 9,888.12

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Solution

The fourth proportional to 18,271.64, 25,214.84 and 9,888.12 is: 13,645.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,271.64 : 25,214.84 = 9,888.12 : x
  2. Step 2: Convert to fraction form
    18,271.64/25,214.84 = 9,888.12/x
  3. Step 3: Cross multiply
    18,271.64x = 25,214.84 × 9,888.12
  4. Step 4: Simplify right side
    18,271.64x = 249,327,363.70
  5. Step 5: Solve for x
    x = 249,327,363.70/18,271.64
  6. Step 6: Final answer
    x = 13,645.59

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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.