Home / 7,849.90-10,838.10-4,870.18

Finding the Fourth Proportional to 7,849.90, 10,838.10 and 4,870.18

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Solution

The fourth proportional to 7,849.90, 10,838.10 and 4,870.18 is: 6,724.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,849.90 : 10,838.10 = 4,870.18 : x
  2. Step 2: Convert to fraction form
    7,849.90/10,838.10 = 4,870.18/x
  3. Step 3: Cross multiply
    7,849.90x = 10,838.10 × 4,870.18
  4. Step 4: Simplify right side
    7,849.90x = 52,783,497.86
  5. Step 5: Solve for x
    x = 52,783,497.86/7,849.90
  6. Step 6: Final answer
    x = 6,724.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.