Home / 15,448.55-21,319.13-8,374.98

Finding the Fourth Proportional to 15,448.55, 21,319.13 and 8,374.98

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Solution

The fourth proportional to 15,448.55, 21,319.13 and 8,374.98 is: 11,557.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,448.55 : 21,319.13 = 8,374.98 : x
  2. Step 2: Convert to fraction form
    15,448.55/21,319.13 = 8,374.98/x
  3. Step 3: Cross multiply
    15,448.55x = 21,319.13 × 8,374.98
  4. Step 4: Simplify right side
    15,448.55x = 178,547,388.25
  5. Step 5: Solve for x
    x = 178,547,388.25/15,448.55
  6. Step 6: Final answer
    x = 11,557.55

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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.