Home / 10,345.70-15,401.52-10,284.19

Finding the Fourth Proportional to 10,345.70, 15,401.52 and 10,284.19

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Solution

The fourth proportional to 10,345.70, 15,401.52 and 10,284.19 is: 15,309.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,345.70 : 15,401.52 = 10,284.19 : x
  2. Step 2: Convert to fraction form
    10,345.70/15,401.52 = 10,284.19/x
  3. Step 3: Cross multiply
    10,345.70x = 15,401.52 × 10,284.19
  4. Step 4: Simplify right side
    10,345.70x = 158,392,157.97
  5. Step 5: Solve for x
    x = 158,392,157.97/10,345.70
  6. Step 6: Final answer
    x = 15,309.95

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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.