Home / 8,531.31-11,779.01-5,345.92

Finding the Fourth Proportional to 8,531.31, 11,779.01 and 5,345.92

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Solution

The fourth proportional to 8,531.31, 11,779.01 and 5,345.92 is: 7,381.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,531.31 : 11,779.01 = 5,345.92 : x
  2. Step 2: Convert to fraction form
    8,531.31/11,779.01 = 5,345.92/x
  3. Step 3: Cross multiply
    8,531.31x = 11,779.01 × 5,345.92
  4. Step 4: Simplify right side
    8,531.31x = 62,969,645.14
  5. Step 5: Solve for x
    x = 62,969,645.14/8,531.31
  6. Step 6: Final answer
    x = 7,381.01

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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.