Home / 7,017.79-10,521.42-4,243.90

Finding the Fourth Proportional to 7,017.79, 10,521.42 and 4,243.90

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Solution

The fourth proportional to 7,017.79, 10,521.42 and 4,243.90 is: 6,362.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,017.79 : 10,521.42 = 4,243.90 : x
  2. Step 2: Convert to fraction form
    7,017.79/10,521.42 = 4,243.90/x
  3. Step 3: Cross multiply
    7,017.79x = 10,521.42 × 4,243.90
  4. Step 4: Simplify right side
    7,017.79x = 44,651,807.04
  5. Step 5: Solve for x
    x = 44,651,807.04/7,017.79
  6. Step 6: Final answer
    x = 6,362.66

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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.