Home / 10,490.40-15,757.47-6,116.40

Finding the Fourth Proportional to 10,490.40, 15,757.47 and 6,116.40

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Solution

The fourth proportional to 10,490.40, 15,757.47 and 6,116.40 is: 9,187.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,490.40 : 15,757.47 = 6,116.40 : x
  2. Step 2: Convert to fraction form
    10,490.40/15,757.47 = 6,116.40/x
  3. Step 3: Cross multiply
    10,490.40x = 15,757.47 × 6,116.40
  4. Step 4: Simplify right side
    10,490.40x = 96,378,989.51
  5. Step 5: Solve for x
    x = 96,378,989.51/10,490.40
  6. Step 6: Final answer
    x = 9,187.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.