Home / 10,370.79-15,490.07-9,382.08

Finding the Fourth Proportional to 10,370.79, 15,490.07 and 9,382.08

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Solution

The fourth proportional to 10,370.79, 15,490.07 and 9,382.08 is: 14,013.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,370.79 : 15,490.07 = 9,382.08 : x
  2. Step 2: Convert to fraction form
    10,370.79/15,490.07 = 9,382.08/x
  3. Step 3: Cross multiply
    10,370.79x = 15,490.07 × 9,382.08
  4. Step 4: Simplify right side
    10,370.79x = 145,329,029.04
  5. Step 5: Solve for x
    x = 145,329,029.04/10,370.79
  6. Step 6: Final answer
    x = 14,013.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.