Home / 9,895.06-13,655.28-5,418.86

Finding the Fourth Proportional to 9,895.06, 13,655.28 and 5,418.86

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Solution

The fourth proportional to 9,895.06, 13,655.28 and 5,418.86 is: 7,478.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,895.06 : 13,655.28 = 5,418.86 : x
  2. Step 2: Convert to fraction form
    9,895.06/13,655.28 = 5,418.86/x
  3. Step 3: Cross multiply
    9,895.06x = 13,655.28 × 5,418.86
  4. Step 4: Simplify right side
    9,895.06x = 73,996,050.58
  5. Step 5: Solve for x
    x = 73,996,050.58/9,895.06
  6. Step 6: Final answer
    x = 7,478.08

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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.