Home / 10,719.87-14,785.28-9,391.27

Finding the Fourth Proportional to 10,719.87, 14,785.28 and 9,391.27

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Solution

The fourth proportional to 10,719.87, 14,785.28 and 9,391.27 is: 12,952.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,719.87 : 14,785.28 = 9,391.27 : x
  2. Step 2: Convert to fraction form
    10,719.87/14,785.28 = 9,391.27/x
  3. Step 3: Cross multiply
    10,719.87x = 14,785.28 × 9,391.27
  4. Step 4: Simplify right side
    10,719.87x = 138,852,482.58
  5. Step 5: Solve for x
    x = 138,852,482.58/10,719.87
  6. Step 6: Final answer
    x = 12,952.81

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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.