Home / 10,284.15-15,426.53-7,118.47

Finding the Fourth Proportional to 10,284.15, 15,426.53 and 7,118.47

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Solution

The fourth proportional to 10,284.15, 15,426.53 and 7,118.47 is: 10,677.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,284.15 : 15,426.53 = 7,118.47 : x
  2. Step 2: Convert to fraction form
    10,284.15/15,426.53 = 7,118.47/x
  3. Step 3: Cross multiply
    10,284.15x = 15,426.53 × 7,118.47
  4. Step 4: Simplify right side
    10,284.15x = 109,813,291.01
  5. Step 5: Solve for x
    x = 109,813,291.01/10,284.15
  6. Step 6: Final answer
    x = 10,677.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.