Home / 15,282.48-21,085.04-8,567.20

Finding the Fourth Proportional to 15,282.48, 21,085.04 and 8,567.20

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Solution

The fourth proportional to 15,282.48, 21,085.04 and 8,567.20 is: 11,820.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,282.48 : 21,085.04 = 8,567.20 : x
  2. Step 2: Convert to fraction form
    15,282.48/21,085.04 = 8,567.20/x
  3. Step 3: Cross multiply
    15,282.48x = 21,085.04 × 8,567.20
  4. Step 4: Simplify right side
    15,282.48x = 180,639,754.69
  5. Step 5: Solve for x
    x = 180,639,754.69/15,282.48
  6. Step 6: Final answer
    x = 11,820.06

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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.