Home / 12,803.03-19,188.14-9,875.18

Finding the Fourth Proportional to 12,803.03, 19,188.14 and 9,875.18

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Solution

The fourth proportional to 12,803.03, 19,188.14 and 9,875.18 is: 14,800.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,803.03 : 19,188.14 = 9,875.18 : x
  2. Step 2: Convert to fraction form
    12,803.03/19,188.14 = 9,875.18/x
  3. Step 3: Cross multiply
    12,803.03x = 19,188.14 × 9,875.18
  4. Step 4: Simplify right side
    12,803.03x = 189,486,191.05
  5. Step 5: Solve for x
    x = 189,486,191.05/12,803.03
  6. Step 6: Final answer
    x = 14,800.11

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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.