Home / 10,079.31-15,117.35-3,153.81

Finding the Fourth Proportional to 10,079.31, 15,117.35 and 3,153.81

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Solution

The fourth proportional to 10,079.31, 15,117.35 and 3,153.81 is: 4,730.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,079.31 : 15,117.35 = 3,153.81 : x
  2. Step 2: Convert to fraction form
    10,079.31/15,117.35 = 3,153.81/x
  3. Step 3: Cross multiply
    10,079.31x = 15,117.35 × 3,153.81
  4. Step 4: Simplify right side
    10,079.31x = 47,677,233.83
  5. Step 5: Solve for x
    x = 47,677,233.83/10,079.31
  6. Step 6: Final answer
    x = 4,730.21

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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.