Home / 12,980.02-19,470.14-7,133.44

Finding the Fourth Proportional to 12,980.02, 19,470.14 and 7,133.44

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Solution

The fourth proportional to 12,980.02, 19,470.14 and 7,133.44 is: 10,700.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,980.02 : 19,470.14 = 7,133.44 : x
  2. Step 2: Convert to fraction form
    12,980.02/19,470.14 = 7,133.44/x
  3. Step 3: Cross multiply
    12,980.02x = 19,470.14 × 7,133.44
  4. Step 4: Simplify right side
    12,980.02x = 138,889,075.48
  5. Step 5: Solve for x
    x = 138,889,075.48/12,980.02
  6. Step 6: Final answer
    x = 10,700.22

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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.