Home / 10,445.88-14,417.61-7,220.22

Finding the Fourth Proportional to 10,445.88, 14,417.61 and 7,220.22

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Solution

The fourth proportional to 10,445.88, 14,417.61 and 7,220.22 is: 9,965.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,445.88 : 14,417.61 = 7,220.22 : x
  2. Step 2: Convert to fraction form
    10,445.88/14,417.61 = 7,220.22/x
  3. Step 3: Cross multiply
    10,445.88x = 14,417.61 × 7,220.22
  4. Step 4: Simplify right side
    10,445.88x = 104,098,316.07
  5. Step 5: Solve for x
    x = 104,098,316.07/10,445.88
  6. Step 6: Final answer
    x = 9,965.49

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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.