Home / 7,439.73-10,264.75-5,315.91

Finding the Fourth Proportional to 7,439.73, 10,264.75 and 5,315.91

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Solution

The fourth proportional to 7,439.73, 10,264.75 and 5,315.91 is: 7,334.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,439.73 : 10,264.75 = 5,315.91 : x
  2. Step 2: Convert to fraction form
    7,439.73/10,264.75 = 5,315.91/x
  3. Step 3: Cross multiply
    7,439.73x = 10,264.75 × 5,315.91
  4. Step 4: Simplify right side
    7,439.73x = 54,566,487.17
  5. Step 5: Solve for x
    x = 54,566,487.17/7,439.73
  6. Step 6: Final answer
    x = 7,334.47

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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.