Home / 10,427.19-15,640.83-3,031.68

Finding the Fourth Proportional to 10,427.19, 15,640.83 and 3,031.68

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Solution

The fourth proportional to 10,427.19, 15,640.83 and 3,031.68 is: 4,547.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,427.19 : 15,640.83 = 3,031.68 : x
  2. Step 2: Convert to fraction form
    10,427.19/15,640.83 = 3,031.68/x
  3. Step 3: Cross multiply
    10,427.19x = 15,640.83 × 3,031.68
  4. Step 4: Simplify right side
    10,427.19x = 47,417,991.49
  5. Step 5: Solve for x
    x = 47,417,991.49/10,427.19
  6. Step 6: Final answer
    x = 4,547.53

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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.