Home / 8,400.31-11,590.45-7,061.01

Finding the Fourth Proportional to 8,400.31, 11,590.45 and 7,061.01

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Solution

The fourth proportional to 8,400.31, 11,590.45 and 7,061.01 is: 9,742.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,400.31 : 11,590.45 = 7,061.01 : x
  2. Step 2: Convert to fraction form
    8,400.31/11,590.45 = 7,061.01/x
  3. Step 3: Cross multiply
    8,400.31x = 11,590.45 × 7,061.01
  4. Step 4: Simplify right side
    8,400.31x = 81,840,283.35
  5. Step 5: Solve for x
    x = 81,840,283.35/8,400.31
  6. Step 6: Final answer
    x = 9,742.53

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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.