Home / 9,386.87-12,953.45-5,408.55

Finding the Fourth Proportional to 9,386.87, 12,953.45 and 5,408.55

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Solution

The fourth proportional to 9,386.87, 12,953.45 and 5,408.55 is: 7,463.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,386.87 : 12,953.45 = 5,408.55 : x
  2. Step 2: Convert to fraction form
    9,386.87/12,953.45 = 5,408.55/x
  3. Step 3: Cross multiply
    9,386.87x = 12,953.45 × 5,408.55
  4. Step 4: Simplify right side
    9,386.87x = 70,059,354.95
  5. Step 5: Solve for x
    x = 70,059,354.95/9,386.87
  6. Step 6: Final answer
    x = 7,463.55

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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.