Home / 10,058.78-13,890.58-6,480.02

Finding the Fourth Proportional to 10,058.78, 13,890.58 and 6,480.02

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Solution

The fourth proportional to 10,058.78, 13,890.58 and 6,480.02 is: 8,948.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,058.78 : 13,890.58 = 6,480.02 : x
  2. Step 2: Convert to fraction form
    10,058.78/13,890.58 = 6,480.02/x
  3. Step 3: Cross multiply
    10,058.78x = 13,890.58 × 6,480.02
  4. Step 4: Simplify right side
    10,058.78x = 90,011,236.21
  5. Step 5: Solve for x
    x = 90,011,236.21/10,058.78
  6. Step 6: Final answer
    x = 8,948.52

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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.