Home / 10,055.30-15,068.10-7,287.80

Finding the Fourth Proportional to 10,055.30, 15,068.10 and 7,287.80

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Solution

The fourth proportional to 10,055.30, 15,068.10 and 7,287.80 is: 10,920.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,055.30 : 15,068.10 = 7,287.80 : x
  2. Step 2: Convert to fraction form
    10,055.30/15,068.10 = 7,287.80/x
  3. Step 3: Cross multiply
    10,055.30x = 15,068.10 × 7,287.80
  4. Step 4: Simplify right side
    10,055.30x = 109,813,299.18
  5. Step 5: Solve for x
    x = 109,813,299.18/10,055.30
  6. Step 6: Final answer
    x = 10,920.94

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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.