Home / 10,124.70-13,972.51-5,648.45

Finding the Fourth Proportional to 10,124.70, 13,972.51 and 5,648.45

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Solution

The fourth proportional to 10,124.70, 13,972.51 and 5,648.45 is: 7,795.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,124.70 : 13,972.51 = 5,648.45 : x
  2. Step 2: Convert to fraction form
    10,124.70/13,972.51 = 5,648.45/x
  3. Step 3: Cross multiply
    10,124.70x = 13,972.51 × 5,648.45
  4. Step 4: Simplify right side
    10,124.70x = 78,922,988.90
  5. Step 5: Solve for x
    x = 78,922,988.90/10,124.70
  6. Step 6: Final answer
    x = 7,795.10

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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.