Home / 8,719.35-12,031.78-5,182.08

Finding the Fourth Proportional to 8,719.35, 12,031.78 and 5,182.08

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Solution

The fourth proportional to 8,719.35, 12,031.78 and 5,182.08 is: 7,150.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,719.35 : 12,031.78 = 5,182.08 : x
  2. Step 2: Convert to fraction form
    8,719.35/12,031.78 = 5,182.08/x
  3. Step 3: Cross multiply
    8,719.35x = 12,031.78 × 5,182.08
  4. Step 4: Simplify right side
    8,719.35x = 62,349,646.50
  5. Step 5: Solve for x
    x = 62,349,646.50/8,719.35
  6. Step 6: Final answer
    x = 7,150.72

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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.