Home / 15,547.29-21,454.49-8,832.03

Finding the Fourth Proportional to 15,547.29, 21,454.49 and 8,832.03

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Solution

The fourth proportional to 15,547.29, 21,454.49 and 8,832.03 is: 12,187.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,547.29 : 21,454.49 = 8,832.03 : x
  2. Step 2: Convert to fraction form
    15,547.29/21,454.49 = 8,832.03/x
  3. Step 3: Cross multiply
    15,547.29x = 21,454.49 × 8,832.03
  4. Step 4: Simplify right side
    15,547.29x = 189,486,655.15
  5. Step 5: Solve for x
    x = 189,486,655.15/15,547.29
  6. Step 6: Final answer
    x = 12,187.76

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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.