Home / 9,854.55-13,599.02-5,378.36

Finding the Fourth Proportional to 9,854.55, 13,599.02 and 5,378.36

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Solution

The fourth proportional to 9,854.55, 13,599.02 and 5,378.36 is: 7,421.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,854.55 : 13,599.02 = 5,378.36 : x
  2. Step 2: Convert to fraction form
    9,854.55/13,599.02 = 5,378.36/x
  3. Step 3: Cross multiply
    9,854.55x = 13,599.02 × 5,378.36
  4. Step 4: Simplify right side
    9,854.55x = 73,140,370.66
  5. Step 5: Solve for x
    x = 73,140,370.66/9,854.55
  6. Step 6: Final answer
    x = 7,421.99

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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.