Home / 13,288.02-18,337.48-7,319.70

Finding the Fourth Proportional to 13,288.02, 18,337.48 and 7,319.70

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Solution

The fourth proportional to 13,288.02, 18,337.48 and 7,319.70 is: 10,101.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,288.02 : 18,337.48 = 7,319.70 : x
  2. Step 2: Convert to fraction form
    13,288.02/18,337.48 = 7,319.70/x
  3. Step 3: Cross multiply
    13,288.02x = 18,337.48 × 7,319.70
  4. Step 4: Simplify right side
    13,288.02x = 134,224,852.36
  5. Step 5: Solve for x
    x = 134,224,852.36/13,288.02
  6. Step 6: Final answer
    x = 10,101.19

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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.