Home / 10,289.95-15,423.81-5,013.31

Finding the Fourth Proportional to 10,289.95, 15,423.81 and 5,013.31

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Solution

The fourth proportional to 10,289.95, 15,423.81 and 5,013.31 is: 7,514.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,289.95 : 15,423.81 = 5,013.31 : x
  2. Step 2: Convert to fraction form
    10,289.95/15,423.81 = 5,013.31/x
  3. Step 3: Cross multiply
    10,289.95x = 15,423.81 × 5,013.31
  4. Step 4: Simplify right side
    10,289.95x = 77,324,340.91
  5. Step 5: Solve for x
    x = 77,324,340.91/10,289.95
  6. Step 6: Final answer
    x = 7,514.55

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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.