Home / 15,547.53-21,455.55-8,474.01

Finding the Fourth Proportional to 15,547.53, 21,455.55 and 8,474.01

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Solution

The fourth proportional to 15,547.53, 21,455.55 and 8,474.01 is: 11,694.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,547.53 : 21,455.55 = 8,474.01 : x
  2. Step 2: Convert to fraction form
    15,547.53/21,455.55 = 8,474.01/x
  3. Step 3: Cross multiply
    15,547.53x = 21,455.55 × 8,474.01
  4. Step 4: Simplify right side
    15,547.53x = 181,814,545.26
  5. Step 5: Solve for x
    x = 181,814,545.26/15,547.53
  6. Step 6: Final answer
    x = 11,694.11

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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.