Home / 10,686.74-14,747.52-6,440.18

Finding the Fourth Proportional to 10,686.74, 14,747.52 and 6,440.18

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Solution

The fourth proportional to 10,686.74, 14,747.52 and 6,440.18 is: 8,887.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,686.74 : 14,747.52 = 6,440.18 : x
  2. Step 2: Convert to fraction form
    10,686.74/14,747.52 = 6,440.18/x
  3. Step 3: Cross multiply
    10,686.74x = 14,747.52 × 6,440.18
  4. Step 4: Simplify right side
    10,686.74x = 94,976,683.35
  5. Step 5: Solve for x
    x = 94,976,683.35/10,686.74
  6. Step 6: Final answer
    x = 8,887.34

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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.