Home / 10,088.40-13,921.95-5,612.58

Finding the Fourth Proportional to 10,088.40, 13,921.95 and 5,612.58

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Solution

The fourth proportional to 10,088.40, 13,921.95 and 5,612.58 is: 7,745.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,088.40 : 13,921.95 = 5,612.58 : x
  2. Step 2: Convert to fraction form
    10,088.40/13,921.95 = 5,612.58/x
  3. Step 3: Cross multiply
    10,088.40x = 13,921.95 × 5,612.58
  4. Step 4: Simplify right side
    10,088.40x = 78,138,058.13
  5. Step 5: Solve for x
    x = 78,138,058.13/10,088.40
  6. Step 6: Final answer
    x = 7,745.34

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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.