Home / 13,569.95-18,728.37-7,906.47

Finding the Fourth Proportional to 13,569.95, 18,728.37 and 7,906.47

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Solution

The fourth proportional to 13,569.95, 18,728.37 and 7,906.47 is: 10,912.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,569.95 : 18,728.37 = 7,906.47 : x
  2. Step 2: Convert to fraction form
    13,569.95/18,728.37 = 7,906.47/x
  3. Step 3: Cross multiply
    13,569.95x = 18,728.37 × 7,906.47
  4. Step 4: Simplify right side
    13,569.95x = 148,075,354.67
  5. Step 5: Solve for x
    x = 148,075,354.67/13,569.95
  6. Step 6: Final answer
    x = 10,912.00

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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.