Home / 15,297.60-21,102.88-9,995.52

Finding the Fourth Proportional to 15,297.60, 21,102.88 and 9,995.52

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Solution

The fourth proportional to 15,297.60, 21,102.88 and 9,995.52 is: 13,788.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,297.60 : 21,102.88 = 9,995.52 : x
  2. Step 2: Convert to fraction form
    15,297.60/21,102.88 = 9,995.52/x
  3. Step 3: Cross multiply
    15,297.60x = 21,102.88 × 9,995.52
  4. Step 4: Simplify right side
    15,297.60x = 210,934,259.10
  5. Step 5: Solve for x
    x = 210,934,259.10/15,297.60
  6. Step 6: Final answer
    x = 13,788.72

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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.