Home / 10,320.02-15,480.07-3,394.50

Finding the Fourth Proportional to 10,320.02, 15,480.07 and 3,394.50

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Solution

The fourth proportional to 10,320.02, 15,480.07 and 3,394.50 is: 5,091.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,320.02 : 15,480.07 = 3,394.50 : x
  2. Step 2: Convert to fraction form
    10,320.02/15,480.07 = 3,394.50/x
  3. Step 3: Cross multiply
    10,320.02x = 15,480.07 × 3,394.50
  4. Step 4: Simplify right side
    10,320.02x = 52,547,097.62
  5. Step 5: Solve for x
    x = 52,547,097.62/10,320.02
  6. Step 6: Final answer
    x = 5,091.76

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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.