Home / 13,275.99-18,320.72-7,307.53

Finding the Fourth Proportional to 13,275.99, 18,320.72 and 7,307.53

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Solution

The fourth proportional to 13,275.99, 18,320.72 and 7,307.53 is: 10,084.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,275.99 : 18,320.72 = 7,307.53 : x
  2. Step 2: Convert to fraction form
    13,275.99/18,320.72 = 7,307.53/x
  3. Step 3: Cross multiply
    13,275.99x = 18,320.72 × 7,307.53
  4. Step 4: Simplify right side
    13,275.99x = 133,879,211.02
  5. Step 5: Solve for x
    x = 133,879,211.02/13,275.99
  6. Step 6: Final answer
    x = 10,084.31

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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.