Home / 13,035.52-17,990.40-7,448.32

Finding the Fourth Proportional to 13,035.52, 17,990.40 and 7,448.32

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Solution

The fourth proportional to 13,035.52, 17,990.40 and 7,448.32 is: 10,279.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,035.52 : 17,990.40 = 7,448.32 : x
  2. Step 2: Convert to fraction form
    13,035.52/17,990.40 = 7,448.32/x
  3. Step 3: Cross multiply
    13,035.52x = 17,990.40 × 7,448.32
  4. Step 4: Simplify right side
    13,035.52x = 133,998,256.13
  5. Step 5: Solve for x
    x = 133,998,256.13/13,035.52
  6. Step 6: Final answer
    x = 10,279.47

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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.