Home / 10,862.32-14,987.91-6,145.69

Finding the Fourth Proportional to 10,862.32, 14,987.91 and 6,145.69

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Solution

The fourth proportional to 10,862.32, 14,987.91 and 6,145.69 is: 8,479.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,862.32 : 14,987.91 = 6,145.69 : x
  2. Step 2: Convert to fraction form
    10,862.32/14,987.91 = 6,145.69/x
  3. Step 3: Cross multiply
    10,862.32x = 14,987.91 × 6,145.69
  4. Step 4: Simplify right side
    10,862.32x = 92,111,048.61
  5. Step 5: Solve for x
    x = 92,111,048.61/10,862.32
  6. Step 6: Final answer
    x = 8,479.87

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.