Home / 12,266.16-18,387.80-4,869.20

Finding the Fourth Proportional to 12,266.16, 18,387.80 and 4,869.20

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Solution

The fourth proportional to 12,266.16, 18,387.80 and 4,869.20 is: 7,299.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,266.16 : 18,387.80 = 4,869.20 : x
  2. Step 2: Convert to fraction form
    12,266.16/18,387.80 = 4,869.20/x
  3. Step 3: Cross multiply
    12,266.16x = 18,387.80 × 4,869.20
  4. Step 4: Simplify right side
    12,266.16x = 89,533,875.76
  5. Step 5: Solve for x
    x = 89,533,875.76/12,266.16
  6. Step 6: Final answer
    x = 7,299.26

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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.