Home / 15,531.32-21,436.80-9,483.62

Finding the Fourth Proportional to 15,531.32, 21,436.80 and 9,483.62

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Solution

The fourth proportional to 15,531.32, 21,436.80 and 9,483.62 is: 13,089.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,531.32 : 21,436.80 = 9,483.62 : x
  2. Step 2: Convert to fraction form
    15,531.32/21,436.80 = 9,483.62/x
  3. Step 3: Cross multiply
    15,531.32x = 21,436.80 × 9,483.62
  4. Step 4: Simplify right side
    15,531.32x = 203,298,465.22
  5. Step 5: Solve for x
    x = 203,298,465.22/15,531.32
  6. Step 6: Final answer
    x = 13,089.58

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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.