Home / 10,129.96-13,985.76-6,948.59

Finding the Fourth Proportional to 10,129.96, 13,985.76 and 6,948.59

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Solution

The fourth proportional to 10,129.96, 13,985.76 and 6,948.59 is: 9,593.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,129.96 : 13,985.76 = 6,948.59 : x
  2. Step 2: Convert to fraction form
    10,129.96/13,985.76 = 6,948.59/x
  3. Step 3: Cross multiply
    10,129.96x = 13,985.76 × 6,948.59
  4. Step 4: Simplify right side
    10,129.96x = 97,181,268.21
  5. Step 5: Solve for x
    x = 97,181,268.21/10,129.96
  6. Step 6: Final answer
    x = 9,593.45

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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.