Home / 7,547.13-11,320.71-2,616.78

Finding the Fourth Proportional to 7,547.13, 11,320.71 and 2,616.78

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Solution

The fourth proportional to 7,547.13, 11,320.71 and 2,616.78 is: 3,925.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,547.13 : 11,320.71 = 2,616.78 : x
  2. Step 2: Convert to fraction form
    7,547.13/11,320.71 = 2,616.78/x
  3. Step 3: Cross multiply
    7,547.13x = 11,320.71 × 2,616.78
  4. Step 4: Simplify right side
    7,547.13x = 29,623,807.51
  5. Step 5: Solve for x
    x = 29,623,807.51/7,547.13
  6. Step 6: Final answer
    x = 3,925.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.