Home / 15,743.86-21,740.95-10,003.16

Finding the Fourth Proportional to 15,743.86, 21,740.95 and 10,003.16

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Solution

The fourth proportional to 15,743.86, 21,740.95 and 10,003.16 is: 13,813.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,743.86 : 21,740.95 = 10,003.16 : x
  2. Step 2: Convert to fraction form
    15,743.86/21,740.95 = 10,003.16/x
  3. Step 3: Cross multiply
    15,743.86x = 21,740.95 × 10,003.16
  4. Step 4: Simplify right side
    15,743.86x = 217,478,268.26
  5. Step 5: Solve for x
    x = 217,478,268.26/15,743.86
  6. Step 6: Final answer
    x = 13,813.53

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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.