Home / 12,345.51-17,035.47-7,309.95

Finding the Fourth Proportional to 12,345.51, 17,035.47 and 7,309.95

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Solution

The fourth proportional to 12,345.51, 17,035.47 and 7,309.95 is: 10,086.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,345.51 : 17,035.47 = 7,309.95 : x
  2. Step 2: Convert to fraction form
    12,345.51/17,035.47 = 7,309.95/x
  3. Step 3: Cross multiply
    12,345.51x = 17,035.47 × 7,309.95
  4. Step 4: Simplify right side
    12,345.51x = 124,528,433.93
  5. Step 5: Solve for x
    x = 124,528,433.93/12,345.51
  6. Step 6: Final answer
    x = 10,086.94

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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.