Home / 9,340.40-12,888.28-5,360.82

Finding the Fourth Proportional to 9,340.40, 12,888.28 and 5,360.82

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Solution

The fourth proportional to 9,340.40, 12,888.28 and 5,360.82 is: 7,397.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,340.40 : 12,888.28 = 5,360.82 : x
  2. Step 2: Convert to fraction form
    9,340.40/12,888.28 = 5,360.82/x
  3. Step 3: Cross multiply
    9,340.40x = 12,888.28 × 5,360.82
  4. Step 4: Simplify right side
    9,340.40x = 69,091,749.19
  5. Step 5: Solve for x
    x = 69,091,749.19/9,340.40
  6. Step 6: Final answer
    x = 7,397.09

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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.