Home / 9,888.24-13,645.36-5,411.88

Finding the Fourth Proportional to 9,888.24, 13,645.36 and 5,411.88

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Solution

The fourth proportional to 9,888.24, 13,645.36 and 5,411.88 is: 7,468.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,888.24 : 13,645.36 = 5,411.88 : x
  2. Step 2: Convert to fraction form
    9,888.24/13,645.36 = 5,411.88/x
  3. Step 3: Cross multiply
    9,888.24x = 13,645.36 × 5,411.88
  4. Step 4: Simplify right side
    9,888.24x = 73,847,050.88
  5. Step 5: Solve for x
    x = 73,847,050.88/9,888.24
  6. Step 6: Final answer
    x = 7,468.17

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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.