Home / 8,752.16-13,130.29-5,378.71

Finding the Fourth Proportional to 8,752.16, 13,130.29 and 5,378.71

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Solution

The fourth proportional to 8,752.16, 13,130.29 and 5,378.71 is: 8,069.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,752.16 : 13,130.29 = 5,378.71 : x
  2. Step 2: Convert to fraction form
    8,752.16/13,130.29 = 5,378.71/x
  3. Step 3: Cross multiply
    8,752.16x = 13,130.29 × 5,378.71
  4. Step 4: Simplify right side
    8,752.16x = 70,624,072.70
  5. Step 5: Solve for x
    x = 70,624,072.70/8,752.16
  6. Step 6: Final answer
    x = 8,069.33

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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.