Home / 12,528.48-17,287.08-7,223.52

Finding the Fourth Proportional to 12,528.48, 17,287.08 and 7,223.52

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Solution

The fourth proportional to 12,528.48, 17,287.08 and 7,223.52 is: 9,967.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528.48 : 17,287.08 = 7,223.52 : x
  2. Step 2: Convert to fraction form
    12,528.48/17,287.08 = 7,223.52/x
  3. Step 3: Cross multiply
    12,528.48x = 17,287.08 × 7,223.52
  4. Step 4: Simplify right side
    12,528.48x = 124,873,568.12
  5. Step 5: Solve for x
    x = 124,873,568.12/12,528.48
  6. Step 6: Final answer
    x = 9,967.18

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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.