Home / 15,317.31-21,136.35-9,350.46

Finding the Fourth Proportional to 15,317.31, 21,136.35 and 9,350.46

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Solution

The fourth proportional to 15,317.31, 21,136.35 and 9,350.46 is: 12,902.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,317.31 : 21,136.35 = 9,350.46 : x
  2. Step 2: Convert to fraction form
    15,317.31/21,136.35 = 9,350.46/x
  3. Step 3: Cross multiply
    15,317.31x = 21,136.35 × 9,350.46
  4. Step 4: Simplify right side
    15,317.31x = 197,634,595.22
  5. Step 5: Solve for x
    x = 197,634,595.22/15,317.31
  6. Step 6: Final answer
    x = 12,902.70

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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.