Home / 13,275.63-18,319.95-7,225.56

Finding the Fourth Proportional to 13,275.63, 18,319.95 and 7,225.56

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Solution

The fourth proportional to 13,275.63, 18,319.95 and 7,225.56 is: 9,971.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,275.63 : 18,319.95 = 7,225.56 : x
  2. Step 2: Convert to fraction form
    13,275.63/18,319.95 = 7,225.56/x
  3. Step 3: Cross multiply
    13,275.63x = 18,319.95 × 7,225.56
  4. Step 4: Simplify right side
    13,275.63x = 132,371,897.92
  5. Step 5: Solve for x
    x = 132,371,897.92/13,275.63
  6. Step 6: Final answer
    x = 9,971.04

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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.