Home / 10,279.93-15,426.05-9,443.40

Finding the Fourth Proportional to 10,279.93, 15,426.05 and 9,443.40

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Solution

The fourth proportional to 10,279.93, 15,426.05 and 9,443.40 is: 14,170.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,279.93 : 15,426.05 = 9,443.40 : x
  2. Step 2: Convert to fraction form
    10,279.93/15,426.05 = 9,443.40/x
  3. Step 3: Cross multiply
    10,279.93x = 15,426.05 × 9,443.40
  4. Step 4: Simplify right side
    10,279.93x = 145,674,397.76
  5. Step 5: Solve for x
    x = 145,674,397.76/10,279.93
  6. Step 6: Final answer
    x = 14,170.76

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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.