Home / 8,411.28-11,595.12-5,386.08

Finding the Fourth Proportional to 8,411.28, 11,595.12 and 5,386.08

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Solution

The fourth proportional to 8,411.28, 11,595.12 and 5,386.08 is: 7,424.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,411.28 : 11,595.12 = 5,386.08 : x
  2. Step 2: Convert to fraction form
    8,411.28/11,595.12 = 5,386.08/x
  3. Step 3: Cross multiply
    8,411.28x = 11,595.12 × 5,386.08
  4. Step 4: Simplify right side
    8,411.28x = 62,452,243.93
  5. Step 5: Solve for x
    x = 62,452,243.93/8,411.28
  6. Step 6: Final answer
    x = 7,424.82

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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.