Home / 10,458.45-14,432.13-5,678.28

Finding the Fourth Proportional to 10,458.45, 14,432.13 and 5,678.28

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Solution

The fourth proportional to 10,458.45, 14,432.13 and 5,678.28 is: 7,835.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,458.45 : 14,432.13 = 5,678.28 : x
  2. Step 2: Convert to fraction form
    10,458.45/14,432.13 = 5,678.28/x
  3. Step 3: Cross multiply
    10,458.45x = 14,432.13 × 5,678.28
  4. Step 4: Simplify right side
    10,458.45x = 81,949,675.14
  5. Step 5: Solve for x
    x = 81,949,675.14/10,458.45
  6. Step 6: Final answer
    x = 7,835.74

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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.