Home / 15,505.29-21,397.73-9,533.57

Finding the Fourth Proportional to 15,505.29, 21,397.73 and 9,533.57

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Solution

The fourth proportional to 15,505.29, 21,397.73 and 9,533.57 is: 13,156.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,505.29 : 21,397.73 = 9,533.57 : x
  2. Step 2: Convert to fraction form
    15,505.29/21,397.73 = 9,533.57/x
  3. Step 3: Cross multiply
    15,505.29x = 21,397.73 × 9,533.57
  4. Step 4: Simplify right side
    15,505.29x = 203,996,602.14
  5. Step 5: Solve for x
    x = 203,996,602.14/15,505.29
  6. Step 6: Final answer
    x = 13,156.58

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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.