Home / 10,315.86-15,472.06-2,918.48

Finding the Fourth Proportional to 10,315.86, 15,472.06 and 2,918.48

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Solution

The fourth proportional to 10,315.86, 15,472.06 and 2,918.48 is: 4,377.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,315.86 : 15,472.06 = 2,918.48 : x
  2. Step 2: Convert to fraction form
    10,315.86/15,472.06 = 2,918.48/x
  3. Step 3: Cross multiply
    10,315.86x = 15,472.06 × 2,918.48
  4. Step 4: Simplify right side
    10,315.86x = 45,154,916.46
  5. Step 5: Solve for x
    x = 45,154,916.46/10,315.86
  6. Step 6: Final answer
    x = 4,377.23

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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.