Home / 15,547.12-21,455.28-8,473.54

Finding the Fourth Proportional to 15,547.12, 21,455.28 and 8,473.54

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Solution

The fourth proportional to 15,547.12, 21,455.28 and 8,473.54 is: 11,693.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,547.12 : 21,455.28 = 8,473.54 : x
  2. Step 2: Convert to fraction form
    15,547.12/21,455.28 = 8,473.54/x
  3. Step 3: Cross multiply
    15,547.12x = 21,455.28 × 8,473.54
  4. Step 4: Simplify right side
    15,547.12x = 181,802,173.29
  5. Step 5: Solve for x
    x = 181,802,173.29/15,547.12
  6. Step 6: Final answer
    x = 11,693.62

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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.