Home / 8,746.11-12,070.89-5,209.38

Finding the Fourth Proportional to 8,746.11, 12,070.89 and 5,209.38

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Solution

The fourth proportional to 8,746.11, 12,070.89 and 5,209.38 is: 7,189.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,746.11 : 12,070.89 = 5,209.38 : x
  2. Step 2: Convert to fraction form
    8,746.11/12,070.89 = 5,209.38/x
  3. Step 3: Cross multiply
    8,746.11x = 12,070.89 × 5,209.38
  4. Step 4: Simplify right side
    8,746.11x = 62,881,852.95
  5. Step 5: Solve for x
    x = 62,881,852.95/8,746.11
  6. Step 6: Final answer
    x = 7,189.69

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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.