Home / 14,920.79-20,590.26-8,547.17

Finding the Fourth Proportional to 14,920.79, 20,590.26 and 8,547.17

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Solution

The fourth proportional to 14,920.79, 20,590.26 and 8,547.17 is: 11,794.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,920.79 : 20,590.26 = 8,547.17 : x
  2. Step 2: Convert to fraction form
    14,920.79/20,590.26 = 8,547.17/x
  3. Step 3: Cross multiply
    14,920.79x = 20,590.26 × 8,547.17
  4. Step 4: Simplify right side
    14,920.79x = 175,988,452.56
  5. Step 5: Solve for x
    x = 175,988,452.56/14,920.79
  6. Step 6: Final answer
    x = 11,794.85

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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.