Home / 7,899.12-10,899.72-4,541.13

Finding the Fourth Proportional to 7,899.12, 10,899.72 and 4,541.13

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Solution

The fourth proportional to 7,899.12, 10,899.72 and 4,541.13 is: 6,266.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,899.12 : 10,899.72 = 4,541.13 : x
  2. Step 2: Convert to fraction form
    7,899.12/10,899.72 = 4,541.13/x
  3. Step 3: Cross multiply
    7,899.12x = 10,899.72 × 4,541.13
  4. Step 4: Simplify right side
    7,899.12x = 49,497,045.48
  5. Step 5: Solve for x
    x = 49,497,045.48/7,899.12
  6. Step 6: Final answer
    x = 6,266.15

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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.