Home / 10,248.80-14,138.16-7,890.08

Finding the Fourth Proportional to 10,248.80, 14,138.16 and 7,890.08

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Solution

The fourth proportional to 10,248.80, 14,138.16 and 7,890.08 is: 10,884.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,248.80 : 14,138.16 = 7,890.08 : x
  2. Step 2: Convert to fraction form
    10,248.80/14,138.16 = 7,890.08/x
  3. Step 3: Cross multiply
    10,248.80x = 14,138.16 × 7,890.08
  4. Step 4: Simplify right side
    10,248.80x = 111,551,213.45
  5. Step 5: Solve for x
    x = 111,551,213.45/10,248.80
  6. Step 6: Final answer
    x = 10,884.32

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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.