Home / 10,027.40-13,830.95-6,878.12

Finding the Fourth Proportional to 10,027.40, 13,830.95 and 6,878.12

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Solution

The fourth proportional to 10,027.40, 13,830.95 and 6,878.12 is: 9,487.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,027.40 : 13,830.95 = 6,878.12 : x
  2. Step 2: Convert to fraction form
    10,027.40/13,830.95 = 6,878.12/x
  3. Step 3: Cross multiply
    10,027.40x = 13,830.95 × 6,878.12
  4. Step 4: Simplify right side
    10,027.40x = 95,130,881.85
  5. Step 5: Solve for x
    x = 95,130,881.85/10,027.40
  6. Step 6: Final answer
    x = 9,487.10

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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.