Home / 9,315.18-12,854.52-5,335.92

Finding the Fourth Proportional to 9,315.18, 12,854.52 and 5,335.92

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Solution

The fourth proportional to 9,315.18, 12,854.52 and 5,335.92 is: 7,363.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,315.18 : 12,854.52 = 5,335.92 : x
  2. Step 2: Convert to fraction form
    9,315.18/12,854.52 = 5,335.92/x
  3. Step 3: Cross multiply
    9,315.18x = 12,854.52 × 5,335.92
  4. Step 4: Simplify right side
    9,315.18x = 68,590,690.36
  5. Step 5: Solve for x
    x = 68,590,690.36/9,315.18
  6. Step 6: Final answer
    x = 7,363.32

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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.