Home / 10,061.36-15,006.64-9,886.40

Finding the Fourth Proportional to 10,061.36, 15,006.64 and 9,886.40

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Solution

The fourth proportional to 10,061.36, 15,006.64 and 9,886.40 is: 14,745.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,061.36 : 15,006.64 = 9,886.40 : x
  2. Step 2: Convert to fraction form
    10,061.36/15,006.64 = 9,886.40/x
  3. Step 3: Cross multiply
    10,061.36x = 15,006.64 × 9,886.40
  4. Step 4: Simplify right side
    10,061.36x = 148,361,645.70
  5. Step 5: Solve for x
    x = 148,361,645.70/10,061.36
  6. Step 6: Final answer
    x = 14,745.69

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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.