Home / 9,854.71-13,599.55-5,378.57

Finding the Fourth Proportional to 9,854.71, 13,599.55 and 5,378.57

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Solution

The fourth proportional to 9,854.71, 13,599.55 and 5,378.57 is: 7,422.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,854.71 : 13,599.55 = 5,378.57 : x
  2. Step 2: Convert to fraction form
    9,854.71/13,599.55 = 5,378.57/x
  3. Step 3: Cross multiply
    9,854.71x = 13,599.55 × 5,378.57
  4. Step 4: Simplify right side
    9,854.71x = 73,146,036.75
  5. Step 5: Solve for x
    x = 73,146,036.75/9,854.71
  6. Step 6: Final answer
    x = 7,422.45

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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.