Home / 12,306.53-18,462.20-5,285.59

Finding the Fourth Proportional to 12,306.53, 18,462.20 and 5,285.59

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Solution

The fourth proportional to 12,306.53, 18,462.20 and 5,285.59 is: 7,929.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,306.53 : 18,462.20 = 5,285.59 : x
  2. Step 2: Convert to fraction form
    12,306.53/18,462.20 = 5,285.59/x
  3. Step 3: Cross multiply
    12,306.53x = 18,462.20 × 5,285.59
  4. Step 4: Simplify right side
    12,306.53x = 97,583,547.11
  5. Step 5: Solve for x
    x = 97,583,547.11/12,306.53
  6. Step 6: Final answer
    x = 7,929.41

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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.