Home / 13,320.47-19,975.51-4,995.95

Finding the Fourth Proportional to 13,320.47, 19,975.51 and 4,995.95

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Solution

The fourth proportional to 13,320.47, 19,975.51 and 4,995.95 is: 7,491.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,320.47 : 19,975.51 = 4,995.95 : x
  2. Step 2: Convert to fraction form
    13,320.47/19,975.51 = 4,995.95/x
  3. Step 3: Cross multiply
    13,320.47x = 19,975.51 × 4,995.95
  4. Step 4: Simplify right side
    13,320.47x = 99,796,649.18
  5. Step 5: Solve for x
    x = 99,796,649.18/13,320.47
  6. Step 6: Final answer
    x = 7,491.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.