Home / 15,532.48-21,435.28-8,459.20

Finding the Fourth Proportional to 15,532.48, 21,435.28 and 8,459.20

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Solution

The fourth proportional to 15,532.48, 21,435.28 and 8,459.20 is: 11,673.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,532.48 : 21,435.28 = 8,459.20 : x
  2. Step 2: Convert to fraction form
    15,532.48/21,435.28 = 8,459.20/x
  3. Step 3: Cross multiply
    15,532.48x = 21,435.28 × 8,459.20
  4. Step 4: Simplify right side
    15,532.48x = 181,325,320.58
  5. Step 5: Solve for x
    x = 181,325,320.58/15,532.48
  6. Step 6: Final answer
    x = 11,673.95

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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.