Home / 15,547.44-21,455.40-8,473.80

Finding the Fourth Proportional to 15,547.44, 21,455.40 and 8,473.80

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Solution

The fourth proportional to 15,547.44, 21,455.40 and 8,473.80 is: 11,693.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,547.44 : 21,455.40 = 8,473.80 : x
  2. Step 2: Convert to fraction form
    15,547.44/21,455.40 = 8,473.80/x
  3. Step 3: Cross multiply
    15,547.44x = 21,455.40 × 8,473.80
  4. Step 4: Simplify right side
    15,547.44x = 181,808,768.52
  5. Step 5: Solve for x
    x = 181,808,768.52/15,547.44
  6. Step 6: Final answer
    x = 11,693.81

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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.