Home / 9,854.70-13,599.27-5,378.28

Finding the Fourth Proportional to 9,854.70, 13,599.27 and 5,378.28

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Solution

The fourth proportional to 9,854.70, 13,599.27 and 5,378.28 is: 7,421.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,854.70 : 13,599.27 = 5,378.28 : x
  2. Step 2: Convert to fraction form
    9,854.70/13,599.27 = 5,378.28/x
  3. Step 3: Cross multiply
    9,854.70x = 13,599.27 × 5,378.28
  4. Step 4: Simplify right side
    9,854.70x = 73,140,681.86
  5. Step 5: Solve for x
    x = 73,140,681.86/9,854.70
  6. Step 6: Final answer
    x = 7,421.91

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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.