Home / 9,091.94-12,547.04-5,315.24

Finding the Fourth Proportional to 9,091.94, 12,547.04 and 5,315.24

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Solution

The fourth proportional to 9,091.94, 12,547.04 and 5,315.24 is: 7,335.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,091.94 : 12,547.04 = 5,315.24 : x
  2. Step 2: Convert to fraction form
    9,091.94/12,547.04 = 5,315.24/x
  3. Step 3: Cross multiply
    9,091.94x = 12,547.04 × 5,315.24
  4. Step 4: Simplify right side
    9,091.94x = 66,690,533.68
  5. Step 5: Solve for x
    x = 66,690,533.68/9,091.94
  6. Step 6: Final answer
    x = 7,335.13

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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.