Home / 10,256.81-14,154.51-5,780.66

Finding the Fourth Proportional to 10,256.81, 14,154.51 and 5,780.66

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Solution

The fourth proportional to 10,256.81, 14,154.51 and 5,780.66 is: 7,977.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,256.81 : 14,154.51 = 5,780.66 : x
  2. Step 2: Convert to fraction form
    10,256.81/14,154.51 = 5,780.66/x
  3. Step 3: Cross multiply
    10,256.81x = 14,154.51 × 5,780.66
  4. Step 4: Simplify right side
    10,256.81x = 81,822,409.78
  5. Step 5: Solve for x
    x = 81,822,409.78/10,256.81
  6. Step 6: Final answer
    x = 7,977.37

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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.