Home / 9,888.20-14,832.30-5,280.20

Finding the Fourth Proportional to 9,888.20, 14,832.30 and 5,280.20

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Solution

The fourth proportional to 9,888.20, 14,832.30 and 5,280.20 is: 7,920.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,888.20 : 14,832.30 = 5,280.20 : x
  2. Step 2: Convert to fraction form
    9,888.20/14,832.30 = 5,280.20/x
  3. Step 3: Cross multiply
    9,888.20x = 14,832.30 × 5,280.20
  4. Step 4: Simplify right side
    9,888.20x = 78,317,510.46
  5. Step 5: Solve for x
    x = 78,317,510.46/9,888.20
  6. Step 6: Final answer
    x = 7,920.30

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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.