Home / 9,895.86-13,656.31-5,358.59

Finding the Fourth Proportional to 9,895.86, 13,656.31 and 5,358.59

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Solution

The fourth proportional to 9,895.86, 13,656.31 and 5,358.59 is: 7,394.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,895.86 : 13,656.31 = 5,358.59 : x
  2. Step 2: Convert to fraction form
    9,895.86/13,656.31 = 5,358.59/x
  3. Step 3: Cross multiply
    9,895.86x = 13,656.31 × 5,358.59
  4. Step 4: Simplify right side
    9,895.86x = 73,178,471.13
  5. Step 5: Solve for x
    x = 73,178,471.13/9,895.86
  6. Step 6: Final answer
    x = 7,394.86

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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.