Home / 15,403.89-23,085.70-7,901.12

Finding the Fourth Proportional to 15,403.89, 23,085.70 and 7,901.12

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Solution

The fourth proportional to 15,403.89, 23,085.70 and 7,901.12 is: 11,841.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,403.89 : 23,085.70 = 7,901.12 : x
  2. Step 2: Convert to fraction form
    15,403.89/23,085.70 = 7,901.12/x
  3. Step 3: Cross multiply
    15,403.89x = 23,085.70 × 7,901.12
  4. Step 4: Simplify right side
    15,403.89x = 182,402,770.56
  5. Step 5: Solve for x
    x = 182,402,770.56/15,403.89
  6. Step 6: Final answer
    x = 11,841.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.