Home / 15,580.68-21,501.18-9,609.96

Finding the Fourth Proportional to 15,580.68, 21,501.18 and 9,609.96

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Solution

The fourth proportional to 15,580.68, 21,501.18 and 9,609.96 is: 13,261.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,580.68 : 21,501.18 = 9,609.96 : x
  2. Step 2: Convert to fraction form
    15,580.68/21,501.18 = 9,609.96/x
  3. Step 3: Cross multiply
    15,580.68x = 21,501.18 × 9,609.96
  4. Step 4: Simplify right side
    15,580.68x = 206,625,479.75
  5. Step 5: Solve for x
    x = 206,625,479.75/15,580.68
  6. Step 6: Final answer
    x = 13,261.65

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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.