Home / 10,151.16-15,219.36-6,856.08

Finding the Fourth Proportional to 10,151.16, 15,219.36 and 6,856.08

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Solution

The fourth proportional to 10,151.16, 15,219.36 and 6,856.08 is: 10,279.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,151.16 : 15,219.36 = 6,856.08 : x
  2. Step 2: Convert to fraction form
    10,151.16/15,219.36 = 6,856.08/x
  3. Step 3: Cross multiply
    10,151.16x = 15,219.36 × 6,856.08
  4. Step 4: Simplify right side
    10,151.16x = 104,345,149.71
  5. Step 5: Solve for x
    x = 104,345,149.71/10,151.16
  6. Step 6: Final answer
    x = 10,279.14

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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.