Home / 9,038.15-12,476.14-8,788.47

Finding the Fourth Proportional to 9,038.15, 12,476.14 and 8,788.47

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Solution

The fourth proportional to 9,038.15, 12,476.14 and 8,788.47 is: 12,131.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,038.15 : 12,476.14 = 8,788.47 : x
  2. Step 2: Convert to fraction form
    9,038.15/12,476.14 = 8,788.47/x
  3. Step 3: Cross multiply
    9,038.15x = 12,476.14 × 8,788.47
  4. Step 4: Simplify right side
    9,038.15x = 109,646,160.13
  5. Step 5: Solve for x
    x = 109,646,160.13/9,038.15
  6. Step 6: Final answer
    x = 12,131.48

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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.