Home / 15,547.61-21,456.25-8,833.03

Finding the Fourth Proportional to 15,547.61, 21,456.25 and 8,833.03

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Solution

The fourth proportional to 15,547.61, 21,456.25 and 8,833.03 is: 12,189.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,547.61 : 21,456.25 = 8,833.03 : x
  2. Step 2: Convert to fraction form
    15,547.61/21,456.25 = 8,833.03/x
  3. Step 3: Cross multiply
    15,547.61x = 21,456.25 × 8,833.03
  4. Step 4: Simplify right side
    15,547.61x = 189,523,624.21
  5. Step 5: Solve for x
    x = 189,523,624.21/15,547.61
  6. Step 6: Final answer
    x = 12,189.89

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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.