Home / 13,987.76-19,303.24-7,700.26

Finding the Fourth Proportional to 13,987.76, 19,303.24 and 7,700.26

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Solution

The fourth proportional to 13,987.76, 19,303.24 and 7,700.26 is: 10,626.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,987.76 : 19,303.24 = 7,700.26 : x
  2. Step 2: Convert to fraction form
    13,987.76/19,303.24 = 7,700.26/x
  3. Step 3: Cross multiply
    13,987.76x = 19,303.24 × 7,700.26
  4. Step 4: Simplify right side
    13,987.76x = 148,639,966.84
  5. Step 5: Solve for x
    x = 148,639,966.84/13,987.76
  6. Step 6: Final answer
    x = 10,626.43

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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.