Home / 10,708.11-14,778.05-7,888.37

Finding the Fourth Proportional to 10,708.11, 14,778.05 and 7,888.37

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Solution

The fourth proportional to 10,708.11, 14,778.05 and 7,888.37 is: 10,886.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,708.11 : 14,778.05 = 7,888.37 : x
  2. Step 2: Convert to fraction form
    10,708.11/14,778.05 = 7,888.37/x
  3. Step 3: Cross multiply
    10,708.11x = 14,778.05 × 7,888.37
  4. Step 4: Simplify right side
    10,708.11x = 116,574,612.95
  5. Step 5: Solve for x
    x = 116,574,612.95/10,708.11
  6. Step 6: Final answer
    x = 10,886.57

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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.