Home / 19,777.36-27,300.63-12,973.98

Finding the Fourth Proportional to 19,777.36, 27,300.63 and 12,973.98

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Solution

The fourth proportional to 19,777.36, 27,300.63 and 12,973.98 is: 17,909.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,777.36 : 27,300.63 = 12,973.98 : x
  2. Step 2: Convert to fraction form
    19,777.36/27,300.63 = 12,973.98/x
  3. Step 3: Cross multiply
    19,777.36x = 27,300.63 × 12,973.98
  4. Step 4: Simplify right side
    19,777.36x = 354,197,827.61
  5. Step 5: Solve for x
    x = 354,197,827.61/19,777.36
  6. Step 6: Final answer
    x = 17,909.26

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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.