Home / 9,370.73-12,931.24-5,389.13

Finding the Fourth Proportional to 9,370.73, 12,931.24 and 5,389.13

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Solution

The fourth proportional to 9,370.73, 12,931.24 and 5,389.13 is: 7,436.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,370.73 : 12,931.24 = 5,389.13 : x
  2. Step 2: Convert to fraction form
    9,370.73/12,931.24 = 5,389.13/x
  3. Step 3: Cross multiply
    9,370.73x = 12,931.24 × 5,389.13
  4. Step 4: Simplify right side
    9,370.73x = 69,688,133.42
  5. Step 5: Solve for x
    x = 69,688,133.42/9,370.73
  6. Step 6: Final answer
    x = 7,436.79

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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.