Home / 7,887.40-10,885.16-4,350.65

Finding the Fourth Proportional to 7,887.40, 10,885.16 and 4,350.65

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Solution

The fourth proportional to 7,887.40, 10,885.16 and 4,350.65 is: 6,004.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,887.40 : 10,885.16 = 4,350.65 : x
  2. Step 2: Convert to fraction form
    7,887.40/10,885.16 = 4,350.65/x
  3. Step 3: Cross multiply
    7,887.40x = 10,885.16 × 4,350.65
  4. Step 4: Simplify right side
    7,887.40x = 47,357,477.80
  5. Step 5: Solve for x
    x = 47,357,477.80/7,887.40
  6. Step 6: Final answer
    x = 6,004.20

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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.