Home / 8,573.19-11,823.28-5,386.78

Finding the Fourth Proportional to 8,573.19, 11,823.28 and 5,386.78

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Solution

The fourth proportional to 8,573.19, 11,823.28 and 5,386.78 is: 7,428.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,573.19 : 11,823.28 = 5,386.78 : x
  2. Step 2: Convert to fraction form
    8,573.19/11,823.28 = 5,386.78/x
  3. Step 3: Cross multiply
    8,573.19x = 11,823.28 × 5,386.78
  4. Step 4: Simplify right side
    8,573.19x = 63,689,408.24
  5. Step 5: Solve for x
    x = 63,689,408.24/8,573.19
  6. Step 6: Final answer
    x = 7,428.90

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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.