Home / 13,275.65-18,320.25-7,307.18

Finding the Fourth Proportional to 13,275.65, 18,320.25 and 7,307.18

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Solution

The fourth proportional to 13,275.65, 18,320.25 and 7,307.18 is: 10,083.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,275.65 : 18,320.25 = 7,307.18 : x
  2. Step 2: Convert to fraction form
    13,275.65/18,320.25 = 7,307.18/x
  3. Step 3: Cross multiply
    13,275.65x = 18,320.25 × 7,307.18
  4. Step 4: Simplify right side
    13,275.65x = 133,869,272.79
  5. Step 5: Solve for x
    x = 133,869,272.79/13,275.65
  6. Step 6: Final answer
    x = 10,083.82

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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.