Home / 13,303.06-18,361.76-7,856.91

Finding the Fourth Proportional to 13,303.06, 18,361.76 and 7,856.91

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Solution

The fourth proportional to 13,303.06, 18,361.76 and 7,856.91 is: 10,844.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,303.06 : 18,361.76 = 7,856.91 : x
  2. Step 2: Convert to fraction form
    13,303.06/18,361.76 = 7,856.91/x
  3. Step 3: Cross multiply
    13,303.06x = 18,361.76 × 7,856.91
  4. Step 4: Simplify right side
    13,303.06x = 144,266,695.76
  5. Step 5: Solve for x
    x = 144,266,695.76/13,303.06
  6. Step 6: Final answer
    x = 10,844.62

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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.