Home / 13,088.40-18,062.16-7,120.23

Finding the Fourth Proportional to 13,088.40, 18,062.16 and 7,120.23

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Solution

The fourth proportional to 13,088.40, 18,062.16 and 7,120.23 is: 9,826.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,088.40 : 18,062.16 = 7,120.23 : x
  2. Step 2: Convert to fraction form
    13,088.40/18,062.16 = 7,120.23/x
  3. Step 3: Cross multiply
    13,088.40x = 18,062.16 × 7,120.23
  4. Step 4: Simplify right side
    13,088.40x = 128,606,733.50
  5. Step 5: Solve for x
    x = 128,606,733.50/13,088.40
  6. Step 6: Final answer
    x = 9,826.01

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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.