Home / 8,849.51-12,211.53-4,870.79

Finding the Fourth Proportional to 8,849.51, 12,211.53 and 4,870.79

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Solution

The fourth proportional to 8,849.51, 12,211.53 and 4,870.79 is: 6,721.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,849.51 : 12,211.53 = 4,870.79 : x
  2. Step 2: Convert to fraction form
    8,849.51/12,211.53 = 4,870.79/x
  3. Step 3: Cross multiply
    8,849.51x = 12,211.53 × 4,870.79
  4. Step 4: Simplify right side
    8,849.51x = 59,479,798.21
  5. Step 5: Solve for x
    x = 59,479,798.21/8,849.51
  6. Step 6: Final answer
    x = 6,721.25

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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.