Home / 8,799.69-12,143.75-5,442.45

Finding the Fourth Proportional to 8,799.69, 12,143.75 and 5,442.45

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Solution

The fourth proportional to 8,799.69, 12,143.75 and 5,442.45 is: 7,510.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,799.69 : 12,143.75 = 5,442.45 : x
  2. Step 2: Convert to fraction form
    8,799.69/12,143.75 = 5,442.45/x
  3. Step 3: Cross multiply
    8,799.69x = 12,143.75 × 5,442.45
  4. Step 4: Simplify right side
    8,799.69x = 66,091,752.19
  5. Step 5: Solve for x
    x = 66,091,752.19/8,799.69
  6. Step 6: Final answer
    x = 7,510.69

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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.