Home / 15,448.08-21,317.19-10,419.12

Finding the Fourth Proportional to 15,448.08, 21,317.19 and 10,419.12

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Solution

The fourth proportional to 15,448.08, 21,317.19 and 10,419.12 is: 14,377.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,448.08 : 21,317.19 = 10,419.12 : x
  2. Step 2: Convert to fraction form
    15,448.08/21,317.19 = 10,419.12/x
  3. Step 3: Cross multiply
    15,448.08x = 21,317.19 × 10,419.12
  4. Step 4: Simplify right side
    15,448.08x = 222,106,360.67
  5. Step 5: Solve for x
    x = 222,106,360.67/15,448.08
  6. Step 6: Final answer
    x = 14,377.60

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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.