Home / 15,317.03-21,145.56-10,307.59

Finding the Fourth Proportional to 15,317.03, 21,145.56 and 10,307.59

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Solution

The fourth proportional to 15,317.03, 21,145.56 and 10,307.59 is: 14,229.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,317.03 : 21,145.56 = 10,307.59 : x
  2. Step 2: Convert to fraction form
    15,317.03/21,145.56 = 10,307.59/x
  3. Step 3: Cross multiply
    15,317.03x = 21,145.56 × 10,307.59
  4. Step 4: Simplify right side
    15,317.03x = 217,959,671.28
  5. Step 5: Solve for x
    x = 217,959,671.28/15,317.03
  6. Step 6: Final answer
    x = 14,229.89

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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.