Home / 10,648.18-15,960.16-6,479.00

Finding the Fourth Proportional to 10,648.18, 15,960.16 and 6,479.00

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Solution

The fourth proportional to 10,648.18, 15,960.16 and 6,479.00 is: 9,711.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,648.18 : 15,960.16 = 6,479.00 : x
  2. Step 2: Convert to fraction form
    10,648.18/15,960.16 = 6,479.00/x
  3. Step 3: Cross multiply
    10,648.18x = 15,960.16 × 6,479.00
  4. Step 4: Simplify right side
    10,648.18x = 103,405,924.64
  5. Step 5: Solve for x
    x = 103,405,924.64/10,648.18
  6. Step 6: Final answer
    x = 9,711.13

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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.