Home / 13,275.36-18,320.12-7,307.16

Finding the Fourth Proportional to 13,275.36, 18,320.12 and 7,307.16

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Solution

The fourth proportional to 13,275.36, 18,320.12 and 7,307.16 is: 10,083.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,275.36 : 18,320.12 = 7,307.16 : x
  2. Step 2: Convert to fraction form
    13,275.36/18,320.12 = 7,307.16/x
  3. Step 3: Cross multiply
    13,275.36x = 18,320.12 × 7,307.16
  4. Step 4: Simplify right side
    13,275.36x = 133,868,048.06
  5. Step 5: Solve for x
    x = 133,868,048.06/13,275.36
  6. Step 6: Final answer
    x = 10,083.95

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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.