Home / 8,853.05-13,281.52-2,931.78

Finding the Fourth Proportional to 8,853.05, 13,281.52 and 2,931.78

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Solution

The fourth proportional to 8,853.05, 13,281.52 and 2,931.78 is: 4,398.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,853.05 : 13,281.52 = 2,931.78 : x
  2. Step 2: Convert to fraction form
    8,853.05/13,281.52 = 2,931.78/x
  3. Step 3: Cross multiply
    8,853.05x = 13,281.52 × 2,931.78
  4. Step 4: Simplify right side
    8,853.05x = 38,938,494.71
  5. Step 5: Solve for x
    x = 38,938,494.71/8,853.05
  6. Step 6: Final answer
    x = 4,398.31

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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.