Home / 15,448.47-21,319.98-8,734.16

Finding the Fourth Proportional to 15,448.47, 21,319.98 and 8,734.16

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Solution

The fourth proportional to 15,448.47, 21,319.98 and 8,734.16 is: 12,053.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,448.47 : 21,319.98 = 8,734.16 : x
  2. Step 2: Convert to fraction form
    15,448.47/21,319.98 = 8,734.16/x
  3. Step 3: Cross multiply
    15,448.47x = 21,319.98 × 8,734.16
  4. Step 4: Simplify right side
    15,448.47x = 186,212,017.14
  5. Step 5: Solve for x
    x = 186,212,017.14/15,448.47
  6. Step 6: Final answer
    x = 12,053.75

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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.