Home / 10,426.68-15,640.74-3,031.20

Finding the Fourth Proportional to 10,426.68, 15,640.74 and 3,031.20

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Solution

The fourth proportional to 10,426.68, 15,640.74 and 3,031.20 is: 4,547.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,426.68 : 15,640.74 = 3,031.20 : x
  2. Step 2: Convert to fraction form
    10,426.68/15,640.74 = 3,031.20/x
  3. Step 3: Cross multiply
    10,426.68x = 15,640.74 × 3,031.20
  4. Step 4: Simplify right side
    10,426.68x = 47,410,211.09
  5. Step 5: Solve for x
    x = 47,410,211.09/10,426.68
  6. Step 6: Final answer
    x = 4,547.01

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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.