Home / 13,987.56-19,303.38-7,700.52

Finding the Fourth Proportional to 13,987.56, 19,303.38 and 7,700.52

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Solution

The fourth proportional to 13,987.56, 19,303.38 and 7,700.52 is: 10,627.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,987.56 : 19,303.38 = 7,700.52 : x
  2. Step 2: Convert to fraction form
    13,987.56/19,303.38 = 7,700.52/x
  3. Step 3: Cross multiply
    13,987.56x = 19,303.38 × 7,700.52
  4. Step 4: Simplify right side
    13,987.56x = 148,646,063.76
  5. Step 5: Solve for x
    x = 148,646,063.76/13,987.56
  6. Step 6: Final answer
    x = 10,627.02

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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.