Home / 10,332.60-15,506.10-6,643.80

Finding the Fourth Proportional to 10,332.60, 15,506.10 and 6,643.80

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Solution

The fourth proportional to 10,332.60, 15,506.10 and 6,643.80 is: 9,970.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,332.60 : 15,506.10 = 6,643.80 : x
  2. Step 2: Convert to fraction form
    10,332.60/15,506.10 = 6,643.80/x
  3. Step 3: Cross multiply
    10,332.60x = 15,506.10 × 6,643.80
  4. Step 4: Simplify right side
    10,332.60x = 103,019,427.18
  5. Step 5: Solve for x
    x = 103,019,427.18/10,332.60
  6. Step 6: Final answer
    x = 9,970.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.