Home / 15,532.74-21,435.23-8,459.15

Finding the Fourth Proportional to 15,532.74, 21,435.23 and 8,459.15

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Solution

The fourth proportional to 15,532.74, 21,435.23 and 8,459.15 is: 11,673.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,532.74 : 21,435.23 = 8,459.15 : x
  2. Step 2: Convert to fraction form
    15,532.74/21,435.23 = 8,459.15/x
  3. Step 3: Cross multiply
    15,532.74x = 21,435.23 × 8,459.15
  4. Step 4: Simplify right side
    15,532.74x = 181,323,739.83
  5. Step 5: Solve for x
    x = 181,323,739.83/15,532.74
  6. Step 6: Final answer
    x = 11,673.65

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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.