Home / 10,392.40-14,346.23-6,620.74

Finding the Fourth Proportional to 10,392.40, 14,346.23 and 6,620.74

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Solution

The fourth proportional to 10,392.40, 14,346.23 and 6,620.74 is: 9,139.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,392.40 : 14,346.23 = 6,620.74 : x
  2. Step 2: Convert to fraction form
    10,392.40/14,346.23 = 6,620.74/x
  3. Step 3: Cross multiply
    10,392.40x = 14,346.23 × 6,620.74
  4. Step 4: Simplify right side
    10,392.40x = 94,982,587.08
  5. Step 5: Solve for x
    x = 94,982,587.08/10,392.40
  6. Step 6: Final answer
    x = 9,139.62

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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.