Home / 7,275.29-10,019.97-6,280.20

Finding the Fourth Proportional to 7,275.29, 10,019.97 and 6,280.20

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Solution

The fourth proportional to 7,275.29, 10,019.97 and 6,280.20 is: 8,649.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,275.29 : 10,019.97 = 6,280.20 : x
  2. Step 2: Convert to fraction form
    7,275.29/10,019.97 = 6,280.20/x
  3. Step 3: Cross multiply
    7,275.29x = 10,019.97 × 6,280.20
  4. Step 4: Simplify right side
    7,275.29x = 62,927,415.59
  5. Step 5: Solve for x
    x = 62,927,415.59/7,275.29
  6. Step 6: Final answer
    x = 8,649.48

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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.