Home / 18,271.96-25,215.33-9,888.46

Finding the Fourth Proportional to 18,271.96, 25,215.33 and 9,888.46

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Solution

The fourth proportional to 18,271.96, 25,215.33 and 9,888.46 is: 13,646.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,271.96 : 25,215.33 = 9,888.46 : x
  2. Step 2: Convert to fraction form
    18,271.96/25,215.33 = 9,888.46/x
  3. Step 3: Cross multiply
    18,271.96x = 25,215.33 × 9,888.46
  4. Step 4: Simplify right side
    18,271.96x = 249,340,782.09
  5. Step 5: Solve for x
    x = 249,340,782.09/18,271.96
  6. Step 6: Final answer
    x = 13,646.09

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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.