Home / 15,045.60-22,582.80-12,856.80

Finding the Fourth Proportional to 15,045.60, 22,582.80 and 12,856.80

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Solution

The fourth proportional to 15,045.60, 22,582.80 and 12,856.80 is: 19,297.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,045.60 : 22,582.80 = 12,856.80 : x
  2. Step 2: Convert to fraction form
    15,045.60/22,582.80 = 12,856.80/x
  3. Step 3: Cross multiply
    15,045.60x = 22,582.80 × 12,856.80
  4. Step 4: Simplify right side
    15,045.60x = 290,342,543.04
  5. Step 5: Solve for x
    x = 290,342,543.04/15,045.60
  6. Step 6: Final answer
    x = 19,297.51

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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.