Home / 9,816.81-13,547.57-5,625.87

Finding the Fourth Proportional to 9,816.81, 13,547.57 and 5,625.87

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Solution

The fourth proportional to 9,816.81, 13,547.57 and 5,625.87 is: 7,763.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,816.81 : 13,547.57 = 5,625.87 : x
  2. Step 2: Convert to fraction form
    9,816.81/13,547.57 = 5,625.87/x
  3. Step 3: Cross multiply
    9,816.81x = 13,547.57 × 5,625.87
  4. Step 4: Simplify right side
    9,816.81x = 76,216,839.51
  5. Step 5: Solve for x
    x = 76,216,839.51/9,816.81
  6. Step 6: Final answer
    x = 7,763.91

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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.