Home / 10,138.68-15,208.02-4,590.99

Finding the Fourth Proportional to 10,138.68, 15,208.02 and 4,590.99

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Solution

The fourth proportional to 10,138.68, 15,208.02 and 4,590.99 is: 6,886.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,138.68 : 15,208.02 = 4,590.99 : x
  2. Step 2: Convert to fraction form
    10,138.68/15,208.02 = 4,590.99/x
  3. Step 3: Cross multiply
    10,138.68x = 15,208.02 × 4,590.99
  4. Step 4: Simplify right side
    10,138.68x = 69,819,867.74
  5. Step 5: Solve for x
    x = 69,819,867.74/10,138.68
  6. Step 6: Final answer
    x = 6,886.49

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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.