Home / 10,689.06-14,737.40-6,905.82

Finding the Fourth Proportional to 10,689.06, 14,737.40 and 6,905.82

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Solution

The fourth proportional to 10,689.06, 14,737.40 and 6,905.82 is: 9,521.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,689.06 : 14,737.40 = 6,905.82 : x
  2. Step 2: Convert to fraction form
    10,689.06/14,737.40 = 6,905.82/x
  3. Step 3: Cross multiply
    10,689.06x = 14,737.40 × 6,905.82
  4. Step 4: Simplify right side
    10,689.06x = 101,773,831.67
  5. Step 5: Solve for x
    x = 101,773,831.67/10,689.06
  6. Step 6: Final answer
    x = 9,521.31

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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.