Home / 10,013.19-15,012.49-4,812.99

Finding the Fourth Proportional to 10,013.19, 15,012.49 and 4,812.99

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Solution

The fourth proportional to 10,013.19, 15,012.49 and 4,812.99 is: 7,215.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,013.19 : 15,012.49 = 4,812.99 : x
  2. Step 2: Convert to fraction form
    10,013.19/15,012.49 = 4,812.99/x
  3. Step 3: Cross multiply
    10,013.19x = 15,012.49 × 4,812.99
  4. Step 4: Simplify right side
    10,013.19x = 72,254,964.25
  5. Step 5: Solve for x
    x = 72,254,964.25/10,013.19
  6. Step 6: Final answer
    x = 7,215.98

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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.