Home / 15,547.50-21,456.47-8,833.41

Finding the Fourth Proportional to 15,547.50, 21,456.47 and 8,833.41

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Solution

The fourth proportional to 15,547.50, 21,456.47 and 8,833.41 is: 12,190.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,547.50 : 21,456.47 = 8,833.41 : x
  2. Step 2: Convert to fraction form
    15,547.50/21,456.47 = 8,833.41/x
  3. Step 3: Cross multiply
    15,547.50x = 21,456.47 × 8,833.41
  4. Step 4: Simplify right side
    15,547.50x = 189,533,818.75
  5. Step 5: Solve for x
    x = 189,533,818.75/15,547.50
  6. Step 6: Final answer
    x = 12,190.63

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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.