Home / 10,943.61-16,400.30-9,479.13

Finding the Fourth Proportional to 10,943.61, 16,400.30 and 9,479.13

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Solution

The fourth proportional to 10,943.61, 16,400.30 and 9,479.13 is: 14,205.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,943.61 : 16,400.30 = 9,479.13 : x
  2. Step 2: Convert to fraction form
    10,943.61/16,400.30 = 9,479.13/x
  3. Step 3: Cross multiply
    10,943.61x = 16,400.30 × 9,479.13
  4. Step 4: Simplify right side
    10,943.61x = 155,460,528.34
  5. Step 5: Solve for x
    x = 155,460,528.34/10,943.61
  6. Step 6: Final answer
    x = 14,205.60

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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.