Home / 9,376.34-12,939.29-5,398.23

Finding the Fourth Proportional to 9,376.34, 12,939.29 and 5,398.23

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Solution

The fourth proportional to 9,376.34, 12,939.29 and 5,398.23 is: 7,449.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,376.34 : 12,939.29 = 5,398.23 : x
  2. Step 2: Convert to fraction form
    9,376.34/12,939.29 = 5,398.23/x
  3. Step 3: Cross multiply
    9,376.34x = 12,939.29 × 5,398.23
  4. Step 4: Simplify right side
    9,376.34x = 69,849,236.47
  5. Step 5: Solve for x
    x = 69,849,236.47/9,376.34
  6. Step 6: Final answer
    x = 7,449.52

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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.