Home / 15,547.34-21,455.42-8,473.82

Finding the Fourth Proportional to 15,547.34, 21,455.42 and 8,473.82

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Solution

The fourth proportional to 15,547.34, 21,455.42 and 8,473.82 is: 11,693.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,547.34 : 21,455.42 = 8,473.82 : x
  2. Step 2: Convert to fraction form
    15,547.34/21,455.42 = 8,473.82/x
  3. Step 3: Cross multiply
    15,547.34x = 21,455.42 × 8,473.82
  4. Step 4: Simplify right side
    15,547.34x = 181,809,217.46
  5. Step 5: Solve for x
    x = 181,809,217.46/15,547.34
  6. Step 6: Final answer
    x = 11,693.91

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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.