Home / 10,088.87-13,921.14-5,612.68

Finding the Fourth Proportional to 10,088.87, 13,921.14 and 5,612.68

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Solution

The fourth proportional to 10,088.87, 13,921.14 and 5,612.68 is: 7,744.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,088.87 : 13,921.14 = 5,612.68 : x
  2. Step 2: Convert to fraction form
    10,088.87/13,921.14 = 5,612.68/x
  3. Step 3: Cross multiply
    10,088.87x = 13,921.14 × 5,612.68
  4. Step 4: Simplify right side
    10,088.87x = 78,134,834.45
  5. Step 5: Solve for x
    x = 78,134,834.45/10,088.87
  6. Step 6: Final answer
    x = 7,744.66

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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.