Home / 9,101.18-12,559.10-5,122.05

Finding the Fourth Proportional to 9,101.18, 12,559.10 and 5,122.05

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Solution

The fourth proportional to 9,101.18, 12,559.10 and 5,122.05 is: 7,068.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,101.18 : 12,559.10 = 5,122.05 : x
  2. Step 2: Convert to fraction form
    9,101.18/12,559.10 = 5,122.05/x
  3. Step 3: Cross multiply
    9,101.18x = 12,559.10 × 5,122.05
  4. Step 4: Simplify right side
    9,101.18x = 64,328,312.54
  5. Step 5: Solve for x
    x = 64,328,312.54/9,101.18
  6. Step 6: Final answer
    x = 7,068.13

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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.