Home / 15,503.60-21,394.13-9,533.09

Finding the Fourth Proportional to 15,503.60, 21,394.13 and 9,533.09

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Solution

The fourth proportional to 15,503.60, 21,394.13 and 9,533.09 is: 13,155.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,503.60 : 21,394.13 = 9,533.09 : x
  2. Step 2: Convert to fraction form
    15,503.60/21,394.13 = 9,533.09/x
  3. Step 3: Cross multiply
    15,503.60x = 21,394.13 × 9,533.09
  4. Step 4: Simplify right side
    15,503.60x = 203,952,172.58
  5. Step 5: Solve for x
    x = 203,952,172.58/15,503.60
  6. Step 6: Final answer
    x = 13,155.15

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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.