Home / 10,370.94-15,531.57-9,125.70

Finding the Fourth Proportional to 10,370.94, 15,531.57 and 9,125.70

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Solution

The fourth proportional to 10,370.94, 15,531.57 and 9,125.70 is: 13,666.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,370.94 : 15,531.57 = 9,125.70 : x
  2. Step 2: Convert to fraction form
    10,370.94/15,531.57 = 9,125.70/x
  3. Step 3: Cross multiply
    10,370.94x = 15,531.57 × 9,125.70
  4. Step 4: Simplify right side
    10,370.94x = 141,736,448.35
  5. Step 5: Solve for x
    x = 141,736,448.35/10,370.94
  6. Step 6: Final answer
    x = 13,666.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.