Home / 12,570.18-17,347.05-6,981.54

Finding the Fourth Proportional to 12,570.18, 17,347.05 and 6,981.54

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Solution

The fourth proportional to 12,570.18, 17,347.05 and 6,981.54 is: 9,634.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,570.18 : 17,347.05 = 6,981.54 : x
  2. Step 2: Convert to fraction form
    12,570.18/17,347.05 = 6,981.54/x
  3. Step 3: Cross multiply
    12,570.18x = 17,347.05 × 6,981.54
  4. Step 4: Simplify right side
    12,570.18x = 121,109,123.46
  5. Step 5: Solve for x
    x = 121,109,123.46/12,570.18
  6. Step 6: Final answer
    x = 9,634.64

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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.