Home / 8,749.47-13,129.61-6,959.93

Finding the Fourth Proportional to 8,749.47, 13,129.61 and 6,959.93

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Solution

The fourth proportional to 8,749.47, 13,129.61 and 6,959.93 is: 10,444.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,749.47 : 13,129.61 = 6,959.93 : x
  2. Step 2: Convert to fraction form
    8,749.47/13,129.61 = 6,959.93/x
  3. Step 3: Cross multiply
    8,749.47x = 13,129.61 × 6,959.93
  4. Step 4: Simplify right side
    8,749.47x = 91,381,166.53
  5. Step 5: Solve for x
    x = 91,381,166.53/8,749.47
  6. Step 6: Final answer
    x = 10,444.19

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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.