Home / 13,097.02-18,073.32-7,128.67

Finding the Fourth Proportional to 13,097.02, 18,073.32 and 7,128.67

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Solution

The fourth proportional to 13,097.02, 18,073.32 and 7,128.67 is: 9,837.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,097.02 : 18,073.32 = 7,128.67 : x
  2. Step 2: Convert to fraction form
    13,097.02/18,073.32 = 7,128.67/x
  3. Step 3: Cross multiply
    13,097.02x = 18,073.32 × 7,128.67
  4. Step 4: Simplify right side
    13,097.02x = 128,838,734.08
  5. Step 5: Solve for x
    x = 128,838,734.08/13,097.02
  6. Step 6: Final answer
    x = 9,837.26

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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.