Home / 10,925.31-16,313.91-8,678.93

Finding the Fourth Proportional to 10,925.31, 16,313.91 and 8,678.93

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Solution

The fourth proportional to 10,925.31, 16,313.91 and 8,678.93 is: 12,959.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,925.31 : 16,313.91 = 8,678.93 : x
  2. Step 2: Convert to fraction form
    10,925.31/16,313.91 = 8,678.93/x
  3. Step 3: Cross multiply
    10,925.31x = 16,313.91 × 8,678.93
  4. Step 4: Simplify right side
    10,925.31x = 141,587,323.70
  5. Step 5: Solve for x
    x = 141,587,323.70/10,925.31
  6. Step 6: Final answer
    x = 12,959.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.