Home / 8,019.73-11,070.30-7,178.95

Finding the Fourth Proportional to 8,019.73, 11,070.30 and 7,178.95

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Solution

The fourth proportional to 8,019.73, 11,070.30 and 7,178.95 is: 9,909.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,019.73 : 11,070.30 = 7,178.95 : x
  2. Step 2: Convert to fraction form
    8,019.73/11,070.30 = 7,178.95/x
  3. Step 3: Cross multiply
    8,019.73x = 11,070.30 × 7,178.95
  4. Step 4: Simplify right side
    8,019.73x = 79,473,130.19
  5. Step 5: Solve for x
    x = 79,473,130.19/8,019.73
  6. Step 6: Final answer
    x = 9,909.70

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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.