Home / 10,402.70-14,355.73-5,686.98

Finding the Fourth Proportional to 10,402.70, 14,355.73 and 5,686.98

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Solution

The fourth proportional to 10,402.70, 14,355.73 and 5,686.98 is: 7,848.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,402.70 : 14,355.73 = 5,686.98 : x
  2. Step 2: Convert to fraction form
    10,402.70/14,355.73 = 5,686.98/x
  3. Step 3: Cross multiply
    10,402.70x = 14,355.73 × 5,686.98
  4. Step 4: Simplify right side
    10,402.70x = 81,640,702.67
  5. Step 5: Solve for x
    x = 81,640,702.67/10,402.70
  6. Step 6: Final answer
    x = 7,848.03

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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.