Home / 10,547.20-15,820.80-7,256.98

Finding the Fourth Proportional to 10,547.20, 15,820.80 and 7,256.98

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Solution

The fourth proportional to 10,547.20, 15,820.80 and 7,256.98 is: 10,885.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,547.20 : 15,820.80 = 7,256.98 : x
  2. Step 2: Convert to fraction form
    10,547.20/15,820.80 = 7,256.98/x
  3. Step 3: Cross multiply
    10,547.20x = 15,820.80 × 7,256.98
  4. Step 4: Simplify right side
    10,547.20x = 114,811,229.18
  5. Step 5: Solve for x
    x = 114,811,229.18/10,547.20
  6. Step 6: Final answer
    x = 10,885.47

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.