Home / 10,017.57-15,018.26-4,178.55

Finding the Fourth Proportional to 10,017.57, 15,018.26 and 4,178.55

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Solution

The fourth proportional to 10,017.57, 15,018.26 and 4,178.55 is: 6,264.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,017.57 : 15,018.26 = 4,178.55 : x
  2. Step 2: Convert to fraction form
    10,017.57/15,018.26 = 4,178.55/x
  3. Step 3: Cross multiply
    10,017.57x = 15,018.26 × 4,178.55
  4. Step 4: Simplify right side
    10,017.57x = 62,754,529.43
  5. Step 5: Solve for x
    x = 62,754,529.43/10,017.57
  6. Step 6: Final answer
    x = 6,264.45

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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.