Home / 10,020.23-15,020.55-4,178.51

Finding the Fourth Proportional to 10,020.23, 15,020.55 and 4,178.51

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Solution

The fourth proportional to 10,020.23, 15,020.55 and 4,178.51 is: 6,263.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,020.23 : 15,020.55 = 4,178.51 : x
  2. Step 2: Convert to fraction form
    10,020.23/15,020.55 = 4,178.51/x
  3. Step 3: Cross multiply
    10,020.23x = 15,020.55 × 4,178.51
  4. Step 4: Simplify right side
    10,020.23x = 62,763,443.28
  5. Step 5: Solve for x
    x = 62,763,443.28/10,020.23
  6. Step 6: Final answer
    x = 6,263.68

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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.