Home / 14,130.51-21,162.07-7,875.01

Finding the Fourth Proportional to 14,130.51, 21,162.07 and 7,875.01

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Solution

The fourth proportional to 14,130.51, 21,162.07 and 7,875.01 is: 11,793.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,130.51 : 21,162.07 = 7,875.01 : x
  2. Step 2: Convert to fraction form
    14,130.51/21,162.07 = 7,875.01/x
  3. Step 3: Cross multiply
    14,130.51x = 21,162.07 × 7,875.01
  4. Step 4: Simplify right side
    14,130.51x = 166,651,512.87
  5. Step 5: Solve for x
    x = 166,651,512.87/14,130.51
  6. Step 6: Final answer
    x = 11,793.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.