Home / 11,487.86-15,854.70-7,010.65

Finding the Fourth Proportional to 11,487.86, 15,854.70 and 7,010.65

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Solution

The fourth proportional to 11,487.86, 15,854.70 and 7,010.65 is: 9,675.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,487.86 : 15,854.70 = 7,010.65 : x
  2. Step 2: Convert to fraction form
    11,487.86/15,854.70 = 7,010.65/x
  3. Step 3: Cross multiply
    11,487.86x = 15,854.70 × 7,010.65
  4. Step 4: Simplify right side
    11,487.86x = 111,151,798.66
  5. Step 5: Solve for x
    x = 111,151,798.66/11,487.86
  6. Step 6: Final answer
    x = 9,675.59

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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.