Home / 7,999.43-11,038.34-5,637.47

Finding the Fourth Proportional to 7,999.43, 11,038.34 and 5,637.47

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Solution

The fourth proportional to 7,999.43, 11,038.34 and 5,637.47 is: 7,779.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,999.43 : 11,038.34 = 5,637.47 : x
  2. Step 2: Convert to fraction form
    7,999.43/11,038.34 = 5,637.47/x
  3. Step 3: Cross multiply
    7,999.43x = 11,038.34 × 5,637.47
  4. Step 4: Simplify right side
    7,999.43x = 62,228,268.61
  5. Step 5: Solve for x
    x = 62,228,268.61/7,999.43
  6. Step 6: Final answer
    x = 7,779.09

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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.