Home / 10,178.80-15,271.28-4,258.56

Finding the Fourth Proportional to 10,178.80, 15,271.28 and 4,258.56

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Solution

The fourth proportional to 10,178.80, 15,271.28 and 4,258.56 is: 6,389.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,178.80 : 15,271.28 = 4,258.56 : x
  2. Step 2: Convert to fraction form
    10,178.80/15,271.28 = 4,258.56/x
  3. Step 3: Cross multiply
    10,178.80x = 15,271.28 × 4,258.56
  4. Step 4: Simplify right side
    10,178.80x = 65,033,662.16
  5. Step 5: Solve for x
    x = 65,033,662.16/10,178.80
  6. Step 6: Final answer
    x = 6,389.13

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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.