Home / 9,868.80-13,619.12-5,392.74

Finding the Fourth Proportional to 9,868.80, 13,619.12 and 5,392.74

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Solution

The fourth proportional to 9,868.80, 13,619.12 and 5,392.74 is: 7,442.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,868.80 : 13,619.12 = 5,392.74 : x
  2. Step 2: Convert to fraction form
    9,868.80/13,619.12 = 5,392.74/x
  3. Step 3: Cross multiply
    9,868.80x = 13,619.12 × 5,392.74
  4. Step 4: Simplify right side
    9,868.80x = 73,444,373.19
  5. Step 5: Solve for x
    x = 73,444,373.19/9,868.80
  6. Step 6: Final answer
    x = 7,442.08

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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.