Home / 10,426.65-15,640.79-3,031.23

Finding the Fourth Proportional to 10,426.65, 15,640.79 and 3,031.23

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Solution

The fourth proportional to 10,426.65, 15,640.79 and 3,031.23 is: 4,547.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,426.65 : 15,640.79 = 3,031.23 : x
  2. Step 2: Convert to fraction form
    10,426.65/15,640.79 = 3,031.23/x
  3. Step 3: Cross multiply
    10,426.65x = 15,640.79 × 3,031.23
  4. Step 4: Simplify right side
    10,426.65x = 47,410,816.72
  5. Step 5: Solve for x
    x = 47,410,816.72/10,426.65
  6. Step 6: Final answer
    x = 4,547.08

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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.