Home / 7,340.13-10,119.47-4,978.17

Finding the Fourth Proportional to 7,340.13, 10,119.47 and 4,978.17

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Solution

The fourth proportional to 7,340.13, 10,119.47 and 4,978.17 is: 6,863.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,340.13 : 10,119.47 = 4,978.17 : x
  2. Step 2: Convert to fraction form
    7,340.13/10,119.47 = 4,978.17/x
  3. Step 3: Cross multiply
    7,340.13x = 10,119.47 × 4,978.17
  4. Step 4: Simplify right side
    7,340.13x = 50,376,417.08
  5. Step 5: Solve for x
    x = 50,376,417.08/7,340.13
  6. Step 6: Final answer
    x = 6,863.15

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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.