Home / 13,802.45-19,041.01-8,133.32

Finding the Fourth Proportional to 13,802.45, 19,041.01 and 8,133.32

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Solution

The fourth proportional to 13,802.45, 19,041.01 and 8,133.32 is: 11,220.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,802.45 : 19,041.01 = 8,133.32 : x
  2. Step 2: Convert to fraction form
    13,802.45/19,041.01 = 8,133.32/x
  3. Step 3: Cross multiply
    13,802.45x = 19,041.01 × 8,133.32
  4. Step 4: Simplify right side
    13,802.45x = 154,866,586.79
  5. Step 5: Solve for x
    x = 154,866,586.79/13,802.45
  6. Step 6: Final answer
    x = 11,220.23

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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.