Home / 10,403.88-14,357.35-5,688.19

Finding the Fourth Proportional to 10,403.88, 14,357.35 and 5,688.19

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Solution

The fourth proportional to 10,403.88, 14,357.35 and 5,688.19 is: 7,849.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,403.88 : 14,357.35 = 5,688.19 : x
  2. Step 2: Convert to fraction form
    10,403.88/14,357.35 = 5,688.19/x
  3. Step 3: Cross multiply
    10,403.88x = 14,357.35 × 5,688.19
  4. Step 4: Simplify right side
    10,403.88x = 81,667,320.48
  5. Step 5: Solve for x
    x = 81,667,320.48/10,403.88
  6. Step 6: Final answer
    x = 7,849.70

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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.